Back on topic, the new rules take effect from 4am, Wednesday 12 May. From then, only British Citizens and residents will be able to get onto the flights into the UK. I would guess there will be some consolidation of flights after that. Whether the traffic will justify a single flight a day, I do not know.
I was planning a return set of flights into Africa next week, so this has messed that up. I will probably still do the outbound on TK. No idea for the return now though. I simply will not be imprisoned in a hotel in my own country, so another route will be needed.