Overall the solution just boils down to one incredibly basic thing that most people probably overlook or forget exist: Siege that still hasnt been buffed in the big siege buff that Anet had to do years ago because WvW was fast grinding to a screeching halt with the objective buffs. Make the true siege engines, the trebs half supply cost with 50%+ more base damage and watch the turtle gameplay melt away with true sieges, fireballs flying high above and defenders forced to sally forth out of objectives. The problem already with this is, that defenders also build trebs.Defenders and attackers both have trebs with shield generatos and we are in a stalemate.