I hope that the combat in TESO doesnt consist of AoE abilities for every skill line.. Thats all GW2 combat is and its lame.. When everyone is DPS no one is and that is an issue. I also hope that if you choose to try to be a support / healer type in TESO that you will actually be able too. In GW2 even if you stack ability / traits for support it is still terrible and 90% of the time you cant even save yourself with your heal.
There needs to be slightly better defined rolls based on how each player specializes in TESO... GW2 shows you what not to do IMO.