We are looking at using the Campus approach for an urban college campus. It's a big site and si=different blocks might be developed at different times - with a timeframe that might make v4, for example, obsolete for later buildings. Could we call it all a "Campus" and then divide it into several Master Sites, with campus credits pursued using the current LEED version at the time? Perhaps there is no sense in that and we should just have separate campuses? The tiers of Master Site and Campus have always perplexed me, and I am wondering if this is the scenario that was meant for. 

Any ideas?