I don't personally believe that any type of hair should be in or out of favour (but it sure as heck serves capitalism to put one in the shade!), but my hairdresser was chatting about to me about trends this week and mentioned the pin straight look is done and dusted.
I notice less younger people with very straight/straightened hair I must admit, but I'd say they look mostly natural. Wearing it long certainly seems to be still in favour!
What do you think? I do see a lot more curlies going about which is great.
She actually said straightened hair looked really dated now, which reminded me of mumsnet 
And she said this as she was...blowdrying mine straight to hurry me out the door!