Any one that jumps to namecoins now will be disappointed.
A lot of people have changed to them so the market will get flooded soon and there price will come right down while pushing bitcoins price up.
Who is going to dump namecoins when the new namecoin painful difficulty kicks in it will be months before the next difficulty drop because all these short term namecoin miners are going to switch back to bitcoin. No one will be mining so namecoins should go up up up

Not necessarily. Before the diff lowered namecoin value was
lower than it is now. There is no guarantee value will go up at higher diff. It's the same with Bitcoin.