If sega does end up getting absorbed by nintendo I would pray to god that Sonic team will get more out of Nights and Jet Set Radio alongside some good Sonic games instead of you know, shitting out a sanic game every year.
Far as other companies go, I think Nintendo would benefit from buying the IP's for certain franchises from said companies, rather than absorbing them as a whole. Like Megaman from Capcom, Castlevannia from Konami, etc. That way they could at least make a bigger effort to cater for more fans of those series and maybe while they're at it they can get a few IP's from Microsoft and Rare so they can bring back games like Banjo and Conker. (A guy can dream right?)
Far as other companies go, I think Nintendo would benefit from buying the IP's for certain franchises from said companies, rather than absorbing them as a whole. Like Megaman from Capcom, Castlevannia from Konami, etc. That way they could at least make a bigger effort to cater for more fans of those series and maybe while they're at it they can get a few IP's from Microsoft and Rare so they can bring back games like Banjo and Conker. (A guy can dream right?)