Well, it's Camelot we're talking about. After all those, years people (and Nintendo themselves) have been asking for a Golden Sun sequel, and now that it's finally released (in Japan for now), I'm almost pretty certain that it will sell well enough based on the IP and the company name alone. In the same way, if Camelot was to step up and really make a new Shining game by themselves (and I would say to put it on a Nintendo console, since Camelot are more associated with Nintendo nowaday, so the fanbase will probably be bigger there) like the DS or the soon to be released 3DS, I'm pretty sure the game will sell like hot cake. Plus, it's not the first time Lady Moogie campaign suceed in reaching Camelot, they even talk about one of them in one of the president of Camelot interview. If if someone can suceed it's her. The goal here is to calm the tension between Sega and Camelot. If that happen, you can be certain that the possibility of it happening would be really big. Because like I said, the making of game like Golden Sun is proof enough for me that Camelot is interrested in making old-school RPG.
But as for the Phantasy Star series, I don't know about you, but Phantasy Star IV nailed pretty much everything right when it comes to a JRPG. Based on that, they could have easily continued to make single-player RPG by improving the already well made formula created for IV. I think it's just the pure BS happening within Sega in that era post PSIV that gave us what we have today. And now, it's indeed a little late to jump back in the wagon unfortunately...but I'm still dreaming, but after the pure failure of PS:P2 to me, I'm sure never touching an online iterations of Phantasy Star ever again
May I remind you that this is where we are right now within the Phantasy Star series


Very "Phantasy Star" is it not? And the quality of the story have gone the same way as the art direction (it will take me years to recover from Phantasy Star Portable 2), so I do believe our beloved series need some saving