My (and probably my wife) will also participate. Fly in on Friday morning and back on Tuesday. Xanthos would be really important for my as otherwise it would be my first meeting with 0 new WHS.
You seem to have forgotten St Kilda... Official meetup left us empty handed, even though we picked up stuff along the way.
Dodecanese Flying Dolphins is operating much faster boats to Fetyie. I one possibility would be Friday evening (16:30-18:00) with 2 nights and 1 entire day in Turkey and return on Sunday (09:00-10:30). We would still have most of Friday and Sunday in Rhodes. Tickets are EUR 35 one way.
I will arrive Friday and wouldn't want to transfer to Turkey same day. Seeing travel risks & bans. I would prefer a single day trip. Also, my flight out is Sunday afternoon and I prefer to wake up in the same country as my departing flight's airport.
@kintante: Why don't you return Sunday evening via Marmaris with a stop in Kaunos? Comes highly recommended.
Other options for you:
* Rhodes -> Patmos
* Patmos -> Mykonos. For Delos be sure to not arrive on the day they are closed.
Mykonos home. Seems like a lovely place for your wife. Or go to Santorini for a 2nd honeymoon ;)