Just my two cents:
I would try to scrape together a few more bucks and get the 70-200 II, and if not, get the 135L, one of the few lenses you never hear anyone say anything bad about, quite the opposite. I would stay put on body, since the 60D is a brilliant crop body with a good sensor. Also put on body, since I would expect like many other here a 7D II in the coming year, which will change the game again. Have you shot with a full frame before? It is a different ball game.
There's always a few more bucks available... but then I have to hear crap from the wife. Actually I hear crap from her when I buy and sell lenses and put the profit towards new gear. For those out there who aren't married... feel free to stay that way.
I'm probably going to get the 135L and I know there may be a second version coming out, but I find it difficult to believe that the next version will be heralded even more than the 135.
I haven't shot with a full frame before, but I do understand the 1.6 crop factor. I'm constantly doing the math with my lenses saying X would be approximately Y on a full frame. I know I don't use all the functions on my 60D, but I am looking for better low-light iso performance. And I won't find that in the crop sensor market. So I'm basically eliminating the 7D mkii (presuming it isn't just a rumor) and the 70D.
I hear you:) I am married and have two boys. If not, I would have had a 1dx, and many more lenses by now
I would be audacious (not sure if that is spelled correct) enough to say that to me; if they release a 135L II, I could care less, given that it is the best lens I have from Canon. Could it be better? Possibly, but the world is so big, and there are many more lenses I need (I think). For portrait you can hardly find any better from Canon, except for the focal lenght limitations. This is the reason why I would love to have the 85 F1.2L II as well
. I have the Siggy 1.4 now, and it is great. However, and this is a big curse, I get to borrow pretty much all Canon lenses there are, and it is a curse, because once you have tried the 85 II, the other in that range suddenly don't cut it anymore
The reason why I put the 70-200 first (and believe me and all the others in here who have it, it it truly a great lens), is because given your limited amount and focal range of lenses (not trying to be rude here), I would opt for a more choices in range, before going for the nirvana of fixed focal lenghts.