Have there been any updates from elsewhere on where displaced buses are expected to end up?
Keeping an eye on recent issues of the Oxford Chiltern Bus Page has alluded to where many of the buses are heading.
Former River Rapids E400s 251-254 are heading to Go South West, see
https://www.oxford-chiltern-bus-page.co.uk/Weekly Briefing nr 281 211223.html
Former Hybrid E400s 300-317 are for cascade although I’ve seen no mention of where they will end up yet.
The Volvo Hybrids 351-369 have been widely reported on social media as heading for Go North West for Bee Network, hence have lost their cherished plates.
BrookesBus Streetdeck Hybrids 371-376, to Pulhams. Of these 371 and 372 have already transferred.
Some of the BrookesBus E400MMCs to Carousel, with 609 already being repainted and refurbished for the relaunched 102 as Flight Line. Probably a safe assumption they will gain more deckers than what is needed for the 102, to also withdraw the other older deckers (241-245, 938, 940, 841). Perhaps this will be the remaining Scania E400s from Oxford. The move of MMCs was mentioned by the MD on the below link
https://www.oxford-chiltern-bus-page.co.uk/Weekly Briefing nr 283 110124.html
Some of the Streetdecks to Thames Travel to replace older double deckers there. Last I heard some Scania E400s would be made surplus so may be cascaded elsewhere.
All existing Citaros to be withdrawn across Oxford, Thames Travel and Carousel.
The pair of City Sightseeing Volvo B9TLs seem to be heading to Go North East, presumably for their Toon Tour after the DAF/Plaxton Presidents were recently stood down. A recent edit on bustimes suggests this, but as always could be wrong
https://bustimes.org/vehicles/csso-632/history