Since most enemies on harder quests get +1 weapons, Shelgarn's becomes kinda useless late game (and also gets wrecked by magic weapon). Should make weapon animator build more solid :D
Wouldn't make them any more OP than standard conjurers are. Those guys can solo high end quests.
Afraid it won't happen. All in all, it's only a 1st circle spell. Currently this spell is really good by itself and this summon is better than most circle 1 summons. It shouldn't become some powerful thing that can withstand high level quests. but if you want to make them more durable for high lvl things, you can buff them yourself.
Maybe one day someone will implement a high level spell like this one, or a "weapon animation" summon theme, but not sure anyone is planning on it right now.