I am hearing some rumors being reported today after seeing a spike in chatter within the gaming community on today. I have not seen the third-party game tracking tools show this much rumor in a long time. I will say the tracking tools are way more heated than the chatter I am seeing, so something might be off here. Again, I saw some initial chatter from within the gaming forums and on this site starting on today.  Now, I decided to cover it on everyday even if the chatter was not at the levels that would warrant me posting something.
To be clear, Wendgames' radar has not confirmed any release is officially going on.
Mod, cheat or hack tracking tools:
Let's start with what the tools are showing:
bila sensor:

Souma sensor:

So most of these tools are incredibly heated, signaling that they are showing available mod, hack or cheat for the game.
Wendgames chatter:
Here is some of the chatter from various comments on this site and facebook groups since the release:

Holy shit this is the biggest gaming news of the year

I surprisingly knew about this game's existence before this!

From someone who actually played it, it's fine, just a pretty average  game. Unless you're chomping at the bit for new experiences, if it looks interesting to you just play the first one.

Let's make a little summary for the game:
GAME INFO
Name of Game: Sa･Ga COLLECTION
Version: 1.0.2 Today: $8.26 $16.81 -51%

Name of the cheat, mod, hint, tip or hack:
-Unlimited Money
-Mod Menu
-Money increases instead of decreasing
-Massive attack
-God mode
-Free Purchases
-Free Shopping
-Enemy does not attack
-Weak enemies
-Unlimited coins/hearts/gold/gems
-Dumb Enemies
-Free Store
-Stats Boosted
-Mega Mod
-High damage/No Shake No Recoil
-mod rewards
-Damage & defense multiplier
-Game speed multiplier
-Unlimited Ammo/no reload/No Recoil
-radar hack/Infinite money
-Unlocked/all levels unlocked

Game description:
4/23～5/6までセール開催中！

高速モードや画面を縦横自由に切り替えられるなど、便利機能の搭載でより快適にプレイが可能。
ボタン配置も自由に変更でき、片手でプレイすることも可能です。
同作の海外版にあたる「FINAL FANTASY LEGEND」3作も収録され、英語でも楽しむことができます。

■収録タイトル
「魔界塔士 サ・ガ」
ミリオンヒットとなった記念すべきサガシリーズの１作目。
主人公たちを「人間」「エスパー」「モンスター」の種族から選択でき、種族ごとに異なる特徴と成長システムが楽しめます。
特に「モンスター」が肉を食べて、別のモンスターへと変化していく成長システムは当時、画期的でした。
主人公は塔の上にあるという楽園を目指し、多彩な世界で待ち受ける強敵を倒しながら、塔の頂上へと冒険を進めていきます。

「サガ２ 秘宝伝説」
より洗練されたゲームシステムと多種多様な世界を巡る冒険で人気を博したシリーズ2作目。
新たな種族の「メカ」や、ゲストキャラクター登場など、よりゲーム性が深まりました。
神々の遺産である「秘宝」を巡り冒険が繰り広げられます。

「時空の覇者 サ・ガ３ [完結編]」
時空を超える物語と、シリーズ初のレベルアップ制を採用した異色作。
種族は6タイプとなり、異なる種族への変化も楽しめるようになりました。
時空を駆ける戦闘機「ステスロス」で、現在、過去、未来を股に掛けた冒険が始まります。

■便利機能が搭載
・「高速モード」移動速度やメッセージ速度を高速に切り替えることができます。
・「画面設定」画面の表示設定を「横画面」と「縦画面」に自由に切り替えてプレイすることができます。
・「言語切り替え」日本語と英語を切り替えることができます。
英語版に切り替えると、海外版にあたる「FINAL FANTASY LEGEND」3作がプレイできます。

———————————————
※アプリは完全落とし切りです。ダウンロード後は一切の追加課金はなくエンディングまでお楽しみいただけます。
※本作は、発売当時のものをほぼ再現していますが、社会的・文化的情勢に配慮し、メッセージ文などが一部変更されています。

【対応OS】
Android 7.0以上

Sa･Ga COLLECTION MOD APK Version 1.0.2 Today: $8.26 $16.81 -51%

Manual Steps:
1. Install Modded APK
2. Play

Download Now
In any case, the best mod, cheat or hack for now comes down to these tips:

1. The first cheat or exploit is to not skip the tutorial, even if you're an advanced player and this is your second, third, or fourth alt account. The beginner's tutorial gives you lots of free stuff and rewards, which are some of the most valuable items in the game.
2. Keep watching the ads and collecting more and more daily currency rewards.
3. Play daily events for more chances to get better currency.
4. Practicing to get better time in PVE or offline mode.
5. Don't skip any unleashed events.
6. Use ad packs from the store to get currency. And free packs can be obtained every certain number of hours.
7. Watch YouTube or Twitch videos: gamer's gameplay style and tutorials.
8. Play against many different opponents with many different gameplay styles.
9. Join the game community on Discord, Reddit, Facebook, or other social media platforms where you can share your gaming experience.
10. Are you a competitive online mobile gamer? The secret to becoming a top mobile gamer is to first have at least a medium-range phone or a top-of-the-line phone. Without a good device, you will never be a good gamer. Next, you need a superfast internet connection. If you want to do exploits against other gamers online in real time, you need incredible internet connectivity, or else lag will become your best friend when your ping goes up to over 300 ms. And finally, you need to be me, Wendgames, the greatest mobile gamer the world has ever seen. If anyone else tells you anything else, they're lying. Skills only come through persistence with great devices and fast connectivity to react appropriately against enemy players.