Curious Orange
Punxsatawney Phil
If you look at the blueprint that shows the east stand you can see that it has been designed to accomodate a further tier, which i guess could expand the 5000 seater east stand to around 10,000.
I have a feeling that the capacity of the East Stand includes the upper tier as I recall it being mentioned that they weren't going to put it in until it was actually needed, which makes sense given our current circumstances. I've posted a message on Ask The Club to clarify though.