Sci-Fi Books ? who`s the new upcomming Ian M banks Or Harry Harrison of our generation??

Answer 1

Iain M Banks and Harry Harrison don't really have a lot in common.

But if you like IMB, you might try his friend Ken McLeod (especially the Fall Revolution series beginning with The Star Fraction), or Charlie Stross.

Another Scot with a good line in space opera is Alastair Reynolds.

If Harry Harrison is more your thing, you might try some of Baen's authors - David Drake, Eric Flint, or David Weber.