Doubtful. The Union Pacific isn't licensing the name any more. There was talk about a retheme but that was a long time ago. Best to track down a 999 games version which tend to be cheaper and more available than an RGG version.
I was going to get a copy from Benelux, but then I read the thread at http://www.boardgamegeek.com/thread/431772/any-news-on-the-r.... According to this thread, there may be a new version coming out at the Spiel this year, so I decided to wait (but then again YMMV - I've got lots of other games to play in the meantime so am not in a rush to get it).
Well it is no straight reprint but: "Airlines Europe" will be released soon. It is the successor to both, "Airlines" and "Union Pacific". It shares a lot of similarities with its predecessors but there are also bigger changes that might make "Airlines Europe" interesting even for those who already own one of the games.