I'd love to see a new enchanter, though I also feel whichever one comes next should address the issues typically associated with the subclass. Enchanters are amazing when they unlock opportunities for their team that nobody else can, but feel absolutely boring to play, and shitty to play against, when they get to just sit back and negate much more difficult plays. Too many of them focus on passive healing and shielding instead of pushing their team to do better, and because of this I feel it could be particularly interesting to have an enchanter that offered no defensive power whatsoever. Having an enchanter that empowered someone's casting, extended their range, gave them forward mobility, etc. could make for interesting gameplay, and could potentially open up more opportunities for other bot laners in the process.