Whats Happening with Sony NEX Firmware?

Ive been away from DP Review for a few months & just read a thread on Firmware for the NEX7.The changes to the EV values in AEB up to 3 EV caught my eye.Being a 5n owner this may be a bad news story,but whats possible on a NEX 7 should be possible on the 5n?This is just the sort of firmware Ive been waiting for,will Sony upgrade NEX5n`s or will it be for 5r models up.Or just for the 7.I`ve already seen some firmware for 5r & NEX 6 models only, (for the 18-55 zoom),surely non wi-fi models wont miss out on these long over due improvements.Please Sony?