I dont have my book yet, but from what I hear the Lizardmen got 1 battlescroll, which basically gives Skinks +1 WS. Thats it. Whoopee doo.
I would recommend that you do yourself a favour and just take a regular lizard list.
EDIT: A battlescroll is basically a list of units that you can include in your army for a set point cost and that usually give you a bunch of special rules. For instance, the Thanquol Battlescroll means that you have to take the following units in your army:
* The new Thanquol model
* A Verminlord
* A couple or units of Stormfiends
* A few other things like Stormvermin or Clanrats.
If you do this, you get a couple of nifty special rules for your whole army to use.
The Lizardmen Battlescroll includes a bunch of subpar units, a buttload of Skinks, and if you take it your Skinks get +1 Weapon Skill. Its not very good...
Kings of War - still rolling my dice and moving my mice