The away stand at Valley Parade is home to home supporters at the moment. You can get a pretty good view from the upper tier of the stand. Capacity of the ground is 25,136 all seater. (i think).
At the moment, there's no real need for expansion at Valley Parade. Bradford City average out about 11,000 turnout, and the Bulls get just under 10,000. There were plans to expand Valley Parade to in excess of 35,000. This could be done by extending the main stand to the end of the pitch (as you said), add a second tier to the Midland Road stand and build a new bigger and better Bradford End Stand. So it has the potential to expand if it's required.

Dogging and BPA could be a good dual use for a stadium.

Did anyone actually take Bob Blackburn's plans seriously?

The Avenue fans I've spoken to have just smiled, with what I guess would have to be called a 'knowing look', when I've mentioned it in the past, so the answer is probably very few took it all that seriously.

I've often felt, in the long term, that some link with Avenue might be the way forward, particularly if Avenue should regain league status, but I can't see it with BB in charge there. Maybe if a change of leadership were to come about it could be feasible, because much as I don't know what plans are in train for Odsal (if any?) it's difficult to see how the Bulls are going to move forward alone as things are.

Don't talk daft daftdad......this is a new,new,new beginning and the reissue of the Fulham shirt that we did 5 years ago will have 'em dancing in the aisles'

Failing that, it might be that I wasn't far off the mark back in July Las year and we are now in a similar leaky boat to the one we were at the stoop, gp, the valley,the stoop and the valley......
Yours sincerely
Got no facts.....

Erm....

Gremlins at work methinks