In principle, a longer standard time control and classical rating would be great but I have some reservations about pairing time.
I stopped playing chess here a few weeks ago because at 2000+, 15|10 pairing was often taking ages. I only currently use the website for puzzles and puzzle rush which are no enough to make me want to renew.
Also, introducing a default 30|30 time control would be great for us that like to play longer games, since, as nklristic pointed out, 45|45 usually lasts longer than 60 mins.
Yeah, 30 minutes with increment would be good idea. It would be probably nice for those who already plays 30 minute games and want something a bit longer but don't really want to go for 45|45 or 1 hour per side.
Though 30|30 is practically equal in duration to 60|0 for games that reach endgame stage, so perhaps 30|20 is a bit more realistic or something like that.
The calculations for the duration are done with the assumption that an average chess game lasts for 40 moves. That would make 30|30 last 50 mins.