I feel that if they set the mini games to scale to the highest player in them, then they should set siege to scale the same way. If There is a level 80 in siege, all gates/faces/fire towers/NPCs/buildings, etc should all be level 80. If the highest is only level 40, then the same. That should make lower level players wanting to siege, be able to have some fun if matched against another low level guild. Course might have a problem with people entering late that are higher than what the stuff was spawned as... hrm. Maybe just npcs and defences, when they respawn/set down take the level of the highest player, forget buildings and gates.
As for mage skills, leave them at 50, no need to up them. Every weapon skill maxes at 50. If you made them higher you would be making mages MORE TP starved than they were before, which is just not a good idea. However, if they wanna go in and up the amount that they give, I wont complain. However, making me have to dump more tps into them... negative. Plus as a mage I have never had a problem making new gear and doing less dmg.... EVER. Been playing a mage since ch1, it is my main character, the one I play in siege, and I like to consider myself close to end game, if not end game. That suggestion is completely unneeded and would hurt mages more than help. Mages I think are fine in siege. If someone says otherwise... I think there is a "seattokeyboard" error.