"I think 'normal' people will not bother with this shit of two coins and just sell their BTC before the fork just to be safe. There is a risk of both coins becoming worthless and certainly there is no probability of one coin of them going much higher than before zero day. So i think it's reasonable to sell ones btc and just wait for the dust to settle if you don't want to take the risk of total loss for the benefit of 'maybe' making a profit by trading the correct coins for the wrong ones. 
Alts are going to JUMP!
"