most likely in the next month or so, but i don't see any changes like that coming before apollo, as this isn't something that is considered a bug, but the way the OS is designed.
the spring updates are generally smaller bugfix and back end updates where the fall updates are larger and are the ones that would incorporate any new features or major changes to the OS.
nodo - small update, added cdma radio functionality basically
mango - large updated, changed many things
tango - small update for allowing lower spec'd phones
apollo - major update (windows phone 8)
it works the same with the xbox division, spring update = small, fall update = large.
there is a place where you can submit ideas to the dev team, and they do actually look at it. i can't find the link atm, but maybe someone else has it handy :)