Seriously?sorry misread the original post. max-prefix-limit most likely will not be added.
I would like to have the bugs you said you wouldn't fix in 6.x fixed, no more than that.What specific things do you want to see in RouterOS 7?
Negative, the power saving related issue is present even with 802.11n disabled.If you run them in single chain mode (disable chain 1 for both ht tx and ht rx) they work fine.
When the address space is exhausted what IPv4 address would you use? There will not be any even if you want to NAT everything on a single one.Why can't you run Dual Stack?