okay riot, stop playing favorites with maps
I am totally tired of S.R. It is boring. TT is better, H.A. is even better than that.
So why all the modes that are only S.R? Why all the bonuses that are only S.R.
Let me guess. Because if you didn't make the modes and goodies only S.R. the rift would dry up an blow away (H.A. pun intended). You do it because if you made the same modes and goodies (like champion level up tokens, and raked modes) available on H.A. few people would play S.R.
I'm a software engineer by profession, so don't give me any lines about it would be so hard to implement or maintain. I know better (at least if your programmers had any sense of modular, reusable code). Perhaps you should have them work on re-usability for a few sprints. Making some of the things that are part of the rift just plug-ins for the different maps. I'd be totally surprised if you didn't have at least some of that already.
So how about it? You could start simple. Make things across the board (every map/mode) that are not IN game for maps.