The Chin has been the i-Mac's brand identity ever since they abandoned (IMO the superior) lamp design.
It looks like a Dell monitor without the chin.
Halving the chin or something to keep that stripe of something at the bottom to still say "I'm an iMac" would be an improvement though. The chin doesn't need to be so big.
I would love to see a new iteration of the lamp. Those speakers were outstanding and far better than any internal ones to come after. I don't miss seeing crumbs in the keyboard though.