We have an iOS \"In-House\" app (distributed OTA) with a Distribution Provisioning Profile that, as you may know, expires in 1 year. We have gone through upgrading the profile
If i understand your question correctly, i had the same exact problem this year.
I Actually had to wait until the Profile Expired before i was able to Renew it.
When the profile had Expired, i would go to the Developer Portal's Provisioning Profiles, and on the right side of the Profile, there would now be a new button next to the Edit Button called Re-new.
Clicking Re-new should renew the current profile.
When the profile was renewed, my team would joust Install the updated profile.
(I sent the updated profile by mail, by downloading the profile(s) from the Provisioning Profiles page)
If that option for some reason would not work, you could alternatively create a new Provisioning Profile
, with the same App ID
and email it to you'r team.