I was wondering if Mountains have only those roads to climb up at heights or if we can climb mountains in other alternative ways like through other rough pavements or alternate routes etc? Any clue anyone?

I'm personally going to stick to the natural paths of the mountains, as it's a more natural feeling than the past TES games where scaling a mountain was running up the face of it and mashing E, looking for the sweet spots to overcome the harsher bits.

I hope they will be climbable easier than in Oblivion. I will use any path I find, but it would be interesting if there were like some hidden shortcuts, hidden passages, hidden caves that lead through the mountain or to the top...

That does sound very nice!

Vsions said a while back that were plenty of ways to get the top of mountains. I would assume some are just easier than others.