Thanks!
I want to be sure that I understand. I think 702DROID is saying that the answer is "yes" to this part:
I can unroot my phone without flashing the recovery image, and then just flash the new Sprint ROM.
since you are on the stock rom you dont need to do anything but go to firmware upgrades (if the update is ota)
Additionally, I think 702DROID is saying that until it has been released, we don't know whether the new Sprint firmware has plugged the hole that allows users to root their Heros. If Sprint has plugged the hole AND the smart folks here and on other forums don't figure out how to open it up again, I could be stuck with only flashing Sprint-released ROMs...
...and uminchu advises that I could lose tethering in that scenario if the new Sprint firmware does not allow it.
I tether infrequently, but want the ability to do so.
Did I understand correctly?