I doubt Ukraine is in the running to join the EU...not for a long while and Putin will try his damdest to stop it....Turkey....now theres an interesting one. For all the EUs talk about the president's crack down on free press, becoming more authoratitive etc etc...it's is a very strategically significant country....and turkey knows this. So do the Americans who owe turkey a favour for letting them go through air space in second Iraq war. Now I'm not saying it's a dead cert turkey join...but you can already see the bargaining they're doing over the migrant crisis...and to be fair you can't blame turkey as they've taken millions...but at the same time for their help they want EU concessions...
May not happen for a generation....but I think turkey will joing before Ukraine...it has more bargaining chips
I'm not making a pro or anti comment...just spelling out my thoights