thanks guys,
so as for my queries, is this going to effect the way I transact now as well as transact from my cold storage, I really do not want to mess around with different change addresses, I just do not want to know about it and I want to use the same address as I do now. I also want to keep 1 Cold Storage backup and not keep changing my backup every single time I make a simple transaction from it.
In that case, after the 2.0 upgrade, you should just keep using your existing (legacy accounts) and cold storage spending. They continue work as they do today.
The main benefits of using the new HD accounts are to be more anonymous and only making one backup ever.