Blog Post
If you take the time to carefully read through all the changes... I really don't like this update. Essentially, they are slowly wiping out all the old content and creating a new game. A different game within the game, where all your past investments become meaningless. Old game modes will eventually be removed from the game entirely.
All the focus will be on the new game.
The Coliseum leaderboard is the primary source of R10 materials – only the whales who spend a lot of money will be on the leaderboards. If you don't spend money, you won't get R10.
The justification for Relic Delta by saying it saves us time is just laughable. Well, thank you. Making the game completely uninteresting to save time for the new Coliseum – that's genius.
Overall, I don't really understand why I should even bother leveling up new characters now. So that in a month they become "old," and I can use them in boring (thanks to Relic Delta) game modes that you might remove completely in the future?
New matchmaking in Grand Arena? No. Changes to Territory War? No.
Happy birthday, SWGOH.....