@Pseudonium 's plugin can already do everything that RemNote does (minus image occlusion). Just use the cloze paragraph style regex for everything.
A lot of people seem to overestimate RemNote’s SRS system. The idea behind it (concept/descriptor framework) is absolutely genius but the implementation is still extremely buggy and unreliable, at least for me. I prefer to keep all of my cards in one single and stable system (Anki).