as far as i know, not that much for the everyday life of students. There are a few things though. The school is getting a ton more money thanks to being part of the rutgers system, and the nih funding has shot up. Imo, this can only be a good thing. I have to read more about it when i get the time, but i haven't seen any real negatives. The only thing i'm uncertain of is how the buyout of university hospital by a private company is going to go (last rumors were that the barnabas health system was going to buy it, but i have heard nil on that front).
As far as residency programs go, i think it'll be a good boost - even having the rutgers name looks good (this prob will apply for rwj as well). The up in nih funding is prob a good thing, since that means more research for the hospital = more opportunities for residents = more fellowships.
Also, new applicants - please don't be afraid to ask new questions (or pm me).