I got you fam. You should be able to edit your avatar and signature now. And welcome to TNE! If you need any help with any mod-related issues, you can talk to me, @FriedShoes, @mattavelle1, or @EvilTw1n.
No, not yet. I will probably get one on Christmas this year or possibly on my birthday in September. I'm still okay with my WiiU for now, but as Fire Emblem, Xenoblade 2 and Mario Odyssey approach, it will be harder to wait.