This idea looks not bad at all and it's good following a plan on expanding the gameplay and create something 'new'. More,a good team work ethic,and lot of focus and effort,and everything is well explained into detail. (You should change the way some customs appearences,just to look better). However,chances of failing are really high. No matter what you're going to bring,it looks impossible to have a decent online.It's not only the fact that huge number of players don't even play anymore,but also active players won't even try to waste minutes of their time to try such a new thing.Also,something like this happened before with no results.To make it easier,you could just use some of your features into a server,to look more attractive and some new gameplay things,there was no need for all this. May you accomplish this,it's so great that someone out there tried for to bring a new experience to play,just know that if you see very low activity/community it would be normal,something that of course doesn't worth for such project,but whatever..Carry on!