WWI is a definite possibility.
The only problem is that so many other stuff is more tempting at the moment.
I have just finished the British and Commonwealth Technical Manual during my vacation.
The Soviet Guards and Italian Paras are more or less done.
After that the Soviet TM needs to be done before I will start anything else.
Than Gear Krieg, than generic weird war, Future War, Lebanon 82 etc.
You get the picture...