You know what show I want to see get a new shot: Eureka Seven. Seriously, the show never really got a fair shot to succeed (heading to Adult Swim was more of a "sentence to death" than anything else). Running two episodes a week, uncut except for ERAB, would allow E7 to find the audience that escaped it during its languishing on AS.
Mecha action, splendid characterization, awesome soundtrack, and one of the few happy endings seen in modern anime, gives it a chance to find a great audience. Granted, it's another youth-leaning show, but it's a violent one at times, and it suits Ani-Mondays more than Rave Master.
Not to mention E7 is influenced by music just as much as Rave Master, but makes better use of it (there's a frickin' BLUES tune in the soundtrack, all of the episodes are named after songs and albums from The Beastie Boys to the classic nuraber "When You Wish Upon A Star", top-of-the-line electronica, the OPs and ERAB go all over the place genre-wise, and the orchestra dives into every mood and tone possible) than Rave Master ever does.