Given the memory requirements otherwise, you will need LMDB first, before you can support 32bit clients.
Honestly this. Even in terms of making aeon usable for people with "normal" computers, AKA 64 bit clients, it's still pretty difficult to run the daemon for it. I feel 8 GB's of RAM is pretty average of regular computers, and since aeon is basically all stored on RAM, it's tough... Hopefully LMDB is easy to port over to aeon since Monero has already done so.