It's more expensive for them to redevelop than to demolish. Park end holds just under 6k so it depends what capacity they are aiming for moving forward.
The park end will eventually become the Ladies "Main stand". Pitch will be turned side on and the current main stand and bullens will be demolished/redeveloped. Will happen over a few years. That's what i have heard. Makes sense in that the park...
Frank was supposed to be thelwells first choice if dyche stayed till end of the season. I think he has done a very good job and Brentford score a lot of goals.