Same as Pompui, I have heard the persistent rumours about Soi Falang ever since I first came to Udon, so like the opening of the Bypass, I will believe when it happens!
Logistically if they were to demolish Mr Tongs etc I could only see this being achieved by demolishing Soi Falang first, thus enabling access to the units without intruding on an already congested road.
The bars in Soi Falang still seem to be changing hands for reasonable amounts of money so this would indicate that demolishion is still some way off or I guess it could be that there are more suckers out there than I had thought
So I'll have an educated guess that it is merely a rumour Ron.