Agree with Don't Tell Em, 2 On and Main Chick. They might crossover to pop, or if not, they should do imo.
I don't think Studio will. It's a nice song, but I don't think it's catchy or up-beat enough for pop like the other songs. And I think it's too late for Part II and The Worst.
Other songs in the urban top 50 that I think should have or could get airplay on pop radio:
Chris Brown - Loyal (got some spins on pop, but should have done a lot better)
Beyonce - Partition (too late for this now

)
Drake - Trophies (he's had pop hits before, and this has a catchy beat and chorus)
Usher - Good Kisser (he's had lots of pop hits before and this song sounds a bit like Robin Thicke/Pharrell's latest pop hits)
Anthony Lewis - Candy Rain (really good)
Nicki Minaj - Pills N Potions (she's had pop hits before and this is produced by Dr. Luke)
Adrian Marcel - 2AM (Really catchy, nice synths, good club track)
Beyonce - Pretty Hurts (she's had lots of pop hits before and this song is written by Sia)
T.I. - No Mediocre (he's had pop hits before, it features Iggy who's popular right now, and it's got a pop friendly beat)