Alternative to Relic 10?

A small suggestion as a compromise to Relic Delta.
Instead of relic 10 and beyond, create a secondary relic icon which contains the future levels of progression and only apply Relic Delta to the secondary relics. These relics can only be unlocked after reaching relic 9.

It's pretty much the same as relic 10+, other than it's clearer to the player that these relics have a different mechanic compared to the previous relics. i.e. Relic Delta.

The game as we know it, won't change. Whilst allowing CG to have, what they define to be, a vertically scalable progression system. I don't think there needs to be a sweeping wide system change, just to add another level of progression.

I still don't think relic delta is a good solution. I don't actually think there is a problem. But if we must have it, then please keep these changes only to the new progression system. There are far too many issues if you implement it in a backwards compatible way and many players will feel their current efforts in this game become greatly devalued.