They used to have a big presence, but now they are a digital only publisher in Europe. If they want to release physical product over here they need to partner up with someone to do it.
I'm generally ambivalent to digital/physical with most games, but when it comes to stuff I love the most I'd much prefer a physical edition so that it's not lost at some point in the future. On the most part, if Sega screw us on a physical release it's not such a big deal since I can import, but on 3DS that's just not possible.
Plus I think in the short term, at least, Atlus USA will be handling distribution, meaning they need to partner up with someone to release the game in Europe. Unless, of course, they release the game digital only as they did with Rock of Ages and Persona 1 on PSP.