Allow me to preface this by saying that I would like for this post to be a thread with input from both veterans and newer players.
Alright, so let's be honest, the rift was pretty cool when it was first released (same with ER), but overtime, it becomes quite obvious it has many issues, namely, its lack of replayability (more on that later) and novelty. Once you've played a few weeks of the rift and the novelty wears off, you realize it's literally the exact same thing every single week. Sure, one can argue that since both map layouts and lineups get randomly generated every week, there a nearly infinite number of possible runs. However, this simply gets boring way too quickly, as it isn't actually game changing in any way (i.e. you can run the same two heroes+build for all 7 realms, regardless of the lineups/layout). The rift is also not farmable, which goes against the core idea of end-game content in this style of games. Together, these nullify the replayability aspect of the only end-game content this game offers.
Suggestion 1:
This one is a pretty obvious one and I'm honestly baffled it still exists after so many years and is an absolute must, regardless of if any of the other suggestions even get read. REMOVE these stupid time gates from the rift. They serve no purpose, other than artificially inflating the "runtime" of the mode, by soft locking players from progressing. Time gates are NOT a fix for a lack of content. By making the game mechanically challenging (not bullet sponges, but something similar to karnheim/karnage), you achieve the same thing, but without imposing artificial gates for the sole purpose of stretching out content (eg. atlantica gates).