Will the block time be 2.5 minutes or seconds?
Minutes.200 blocks witch reward 1, block time 2.5 minutes.. 8 hours without reward or i not understand well?
I'm assuming it would take no longer than 60 minutes to mine the 200 starting blocks and get regular block rewards because of high hash rate and low difficulty.
If I remember right KGW will be on, so in 20 blocks DIFF will be sky high because if it (if there is a heavy nethash).
who's bringing this high hash rate ? the Ipo guys ? or all the miners that got f'ed over in the "first" launch ?
I think the dev should solo mine the first 200 blocks then(He said he would mine 100 blocks for testing). Just to make things fair for everything. 
