It will certainly be more popular the the PC version. The pc version died because it requires gold and has a pay to win gelat shop. And because its several years old. My estimate is after a few weeks it will average out to like 400 players online like when iEra first came out.
I played it around when it was first released. I had so much fun back then fighting with Tao(Siwin) and Gambet. Now with all the new guns, crappy maps, and crappy modes, it's not as appealing to me.
I'm sure this upcoming server will be equally as popular as the likes of iClassic and iEra. From the only prerelease screenshot we can gather that it is a new twist on the PC server. Hopefully full of surprises and a mix of futuristic and retro graphics.