What an atrocious list. If you want to play with RPR's braindead rotation you can just... Play Reaper.I'm not terribly worried, but then I don't main drg. I use it as my best-in-role for melee dps (same with ast, actually) and I consider it and ast to be quite good but a bit flawed so I'm still cautiously optimistic about the rework.
I think combining fang and claw/wheeling thrust is the low-hanging fruit here, though I'd be a bit sad to see it go because I actually think the 5-button rotation is the most fun part of the job.
Personally I think the regular jump is redundant (if we wanted to return to our original spot we have elusive jump, right?) so I'd have no problem with every jump being a gap closer and just adding stacks to spineshatter dive. I think they'll try to do something of this sort just to reduce that redundancy. I really want them to make elusive jump go in whatever direction you're pressing so it can be yet another gap closer, but I doubt they want to touch that one. The tricky part of removing the regular jump or removing its return-to-start effect is that it requires changing how mirage dive works...but that may be exactly what they're after.
Looking at the two things I have the most trouble with: trying to target and weave dragon sight is a bit of a pain with the short duration; unlike dnc you can't just hit it at the beginning of a dungeon and stop worrying about it. Given that drg already has a party-wide buff maybe they just cut it, though that seems drastic.
The biggest thing that I have trouble with is that the whole gierskogul / mirage dive / nastrond thing seems a bit awkward the way it is, so if you're trying to find cuts to worry about I'd look there. If they consolidate jumps we might see mirage dive get removed entirely. Based on their design philosophy I'd be willing to bet they get rid of the Life of the Dragon gauge and make it a stacked buff with a generous time limit like they did with Berserk. But between cultural differences and just having a lot of people it can be pretty hard to predict exactly what they're going to do, which is why I'm not worrying about it ahead of time. It's interesting to ponder though, knowing that I have a high chance of being wrong.