As I know, Sala Polivalenta in Cluj is not ready yet, and we need a big venue for this match. I think Bucharest will be the first choice, and Craiova the second, since there is a big arena and 4000 - 5000 fans will make a crazy atmosphere.
LE: I`m happy and confident with the draw, considering Halep will meet JJ again and (definitely) win, and Sorana will play har girlfriend Ana. Don`t know anything about their double team, but I`m very confident in ours
Could even be Brasov. They hosted 2013 Davis Cup match with the Netherlands and both the venue and the people were great. Better than in Bucharest.