What I plan to do is get myself a mini-atx motherboard (AmigaOne Lite) and put it in a mini-atx desktop case so it would give it sort of an A3000/A4000 feel. Somewhere on it I will also paste an Amiga sticker, and that's about it. :-)
I'll see if a company like Elbox comes out with a must have tower case design for AmigaOne as they did for the classic models, but probably not, as this time Amiga comes in a standard motherboard form, unlike the classic models, so people would not be somewhat forced anymore to accept those outrageous prices for simple tower conversions.