Well, to be very blunt, I looked at your link....and then browsed around a bit on the site. I see NO reason to put things on hold !
A: Steam is a Royal Pain.
B: TSW 17 seems to be flop, if you read the reviews on their own site.
C: The screenies you have shown us in TANE are more than worthy of continuing development of the route.
DaveL
Just say'in.......
Would be ashamed to cancel construction of this route in TANE in favor of a Train sim that isn't even released yet. It's not even in alpha yet. I would say that you'd be best to continue working along in here than putting your faith into a train sim that yes, does look very good, but has little to offer at this moment in time. I covered in good detail some of the questions that have yet to be answered with TSW.
Let me illiterate them here again:
TSW is going into alpha beta in Dec. The program is probably at least another year away. Yes, I agree, the program looks fantastic, and when I get the pioneer's edition to get access to this, I will see for myself, if said realism can really be delivered in such fashion. If anything, I'm more interested in seeing if TSW is only based on little story like CSX Heavy Haul, or your actually getting a full sized simulation product. That alone right there could put TSW to an end very very quickly when you have to pay $60 a pop for one little story.
TSW may not deliver the features you want to see like your thinking it will. This concerns me, and I'm sure concerns many other users who will be putting plenty of money into buying a program that looks as good as it does. But, I'm not as big on looks as I am functionality. Railworks has never functioned in the past as well as Trainz or MSTS do. Yes, the game itself is graphically beautiful, but driving wise is kinda boring.
I however, would not be so quick to call it a flop yet. I will call it a flop when I and many other people buy the program as expected, and we find out it delivers nothing that was promised and etc.. I will agree, TANE was a flop to begin with. But if you look, TANE has come a very long way since release day. It is worthy of your efforts to continue the project in TANE, where it will be better received anyways. Last time I checked, Railworks, nor TSW is compatabile with a route built in another simulator's platform. You would have to start the project all over again in favor of moving to an
unreleased train simulator that apparently looks better than TANE.
Why waste the time? Why not maybe try doing the project in both platforms?? I bet it'd look just as good as in TSW as TANE right now. Why not do the project for both? I mean if your already willing to take the time to start the project over, then that would be a good move on your part.
As far as steam being a pain, Steam is not a pain, I don't get where people get off on this. I have steamed installed, and play plenty of games flaw free through steam. Really, sometimes issues can be user caused, just sayin.
The TANE version of this route would be fantastic. Again,
it would be ashamed to see you cancel the project in TANE in favor of moving to unreleased train simulator that apparently looks better than TANE. 
