While it's sad to read that you're having issues with Rowan it's still up to you what you want to do. I do so want to see those eggs hatch. Rowan (if his band was correct) was hatched in 2018. I'm not sure how old pigeons live to be. I would think you'd have a easier time placing their offspring. I also think it's important to keep in mind that Olive might have behaviors if her mate is gone. Either way I'm far from a pigeon expert but I have enjoyed watching their story. I'm sure you will do what is best for themI have some wooden eggs.
As far as your second point... I guess not. I was excited to see babies but I don't really have space longterm for when babies become adults.
Things have been slowly sliding down the slippery slope from my original intentions to have a pet bird. Since all of my creatures must, by necessity, live in the house with me I probably should stop the ball from rolling before it becomes too much of a good thing. Especially since, as of late, only two of these guys have started to feel like too much.
i can't wait! I feel like a kid a Christmas!
So exciting. Can't wait to hear your first impressions and ... PICTURES!
I'm gonna bombard you with them! 
