Will it be twice as profitable? Which pools will support it?
I hope most pools will support it. I know that SimpleDoge and MultiPool.us are planning it, not sure about others, haven't been following too closely.
Initially there might be some increased profitability but I don't think it will be anywhere near twice, and eventually it will probably slide to the regular LTC level. Most miners will be dumping the coins just like they do now and I don't see the merger bringing any fundamental change that would increase DEMAND, which is what ultimately drives exchange rates. That's just my opinion though and I'd like to be proven wrong - I think we all could use some profit boost...