kh8 looks risky-white can either play for the attack after b4 and b-b2-haven't looked at it incredibly deeply but..if na4 then our rook on the f file can lift f4-h4(There are ideas of b-f4 and rooks coming to the dfile once again if this attack is defended....And if all that doesn't work then we can go straight back to our r-d1 idea

But, I think u are missing the key idea in the position.  K-h8 how are you going to defend h7 after 1.Bxg5 fxg5 2 f6 r-g8 3.b4!You have to give up the knight to save mate(if you can which I don't seem to see without giving up the queen for the light squared bishop )

I fail to see what weaknesses 'in the center' you have in mind (after 4...g5). The only black weakness is the d6 pawn, and it will be defended after ...Qc7 and ...Rd8 if needed, or even sacrified. Meanwhile White has no pawn control over e3,e4,e5 and the file is open.

Black's 'plan' is to develop the light squared bishop, then to put the rooks on the center files. If White allows this without taking immediate action, on the h file for example, he will lose his additional pawn due to his positional disadvantages. Here's an example of poor White play that allows this (just to demonstrate the final position Black would like to reach) :

qxd6 isn't the bad move.  Your "weakness that you show is completely irrelevant after b3...and he STILL has the bishop pair no weaknesses a better pawn structure AND the extra pawn.  THis is HORRIBLE for black. 

Instead of q-d4 though white should just play b3(protecting the pawn and opening up for the bishop on A3 no b2)then b-a3....you still can't develp your bishop because its tied to b7.  So you have positional weaknesses, problems with development and fighting against a good bishop pair(once again I am even pretending like white can't switch to the kingside if the rook comes to the defense of the d pawn)  Notice the principle of TWO weaknesses