How will "How I met your mother" evolve? Part 1

Who will Barney marry?
To say it with Ted's words: "We are totally, almost-not really all that close to the end". But we are close to the end of season 7 and still don't have a clue who Barney is going to marry, haven't we? Okay, we all want to see Robin and Barney at the altar, but the authors played with us for some episodes (especially those in November) and then showed, that this won't happen. Remember the episode "The Rebound Girl"? Ted and Barney adopted a baby. It showed the huge wish in Barney for having a baby. Therefore you most understand Barney's psychology.In the episode "Not-a-fathers day" he celebrates for not being a father. But deep inside it's exactly what he wishes.
In psych-slang known as counteraction. 
So let's get back to the episodes.It ends with Robin, saying: "I'm pregnant". She left us with who and how...
But in the following episode we got to know, that she was wrong, even worse, she can't get pregnant. So does that mean Barney and Robin won't get married because of that?

Ted with the "adopted" baby

I think, although the Barney-Robin-forever lovers are going to hate me for that, this is plausible, but how knows? Please comment, maybe you've got a strong argument in favor? And tune in for the next Episodes ("The Burning Barkeeper",Mo. 6th and "The Drunk Train" Mo.13th 8/7c CBS)