Theres still good RP guilds on europa.
What kind of RP are you looking for...easy going RP or more actionpacked RP?
You have Baronship of Cove [BoC] its a littlebit of both...
Vesper [-V-] also a littlebit of both..leaning abit more towards the action.
Douchy of Trinsic [DOT] thats more easygoing and less action.
Guardsmen Militia [Grd] littlebit of both..
There are lots more, I just mentioned some of the bigger ones. There is still lots of RP going on Europa, but it seems its the events that includes some RP-pvp that draws the bigger crowds.
Hope you find one you like...