Checked out Lonely Planet and Trip Advisor - in Central Asia thre're so many interesting places but we won't have time to check out all those. We've decided to fly to Astana, spend a day there and then take a trip to Aral sea and Baikonur Cosmodrome, from there go to Shymkent and all those nature parks that are in its vicinity, form there to Tashkent, Samarkand (definitely we'll spend three to four days there and also for one day go to Bukhara), Panjakent, Dushanbe and from there we'll take a shared taxi to Mardz (want to hike around Badakhshan and Pamirsky National Parks but we won't be climbing any peaks; we still have to decide which trails we'll take there; but guess we'll have to spend the night in homestay places and then somehow reach Murghab) and then we'll head to Kashgar from Sary-Tash through Irkeshtam Pass. Then either by air or train we'll go to Bishkek. There we most probably rent a car and go to Issyk Kul, then to Almaty, hike around mountains there and drive back to Bishkek and finally go home.
We've also been considering another route -
from Shymkent fly to Almaty with flyarystan (there're some nice Christmas flight and hotels deals, especially
offers from cheapoair hotels) and travel through the same places but in reverse direction from Almaty and fly back home from Tashkent.
Those are ambitious plans but hope we'll be able to visit all those places.