N3V have stated that TANE will be backward compatible with TS12 - that's fine, but in that would have to at least support build 2.9 and above is my guess.
Also, N3V should also be aware that the customer base has spent endless hours:
1. Downloading content
2. Creating content
3. Repairing content
They have also spent money on:
1. Buying updated Trainz
2. Buying content from N3V & 3rd Party
3. Buying updating 3d programs to create content
Basically what I am saying is that everyone into Trainz has made some sort of commitment be it time, money or anything else to support the product.
And at a rough guess it would be in N3V's best interest to maintain the good relations (currently under threat) and keep on supporting user and creationist up to TS12 and builds 2.9 and above for at least the next few years until.
A. The users update to TANE
B. Creators get time to fix/repair and build TANE compliant assets (that by the way should be backward compatible to TS12).
I can only encourage all our dedicated creators to hang in and not chuck in the towel - we the user love you all.
This is too difficult to do because it's the logical thing to do.

The crew seem to forget who really makes the product sell. If all we had were their few routes and old content no one would buy it! The product was designed right from the very beginning with the end-community in mind and with the support of the community the product developed and grew to what we have now. Forgetting these routes spells trouble for them.
John