I love lists! Find them hard to stay away from. So here's mine with a bunch of repeats from other peoples.
A New Bren/Universal carrier, too important not to have a new modern kit.
6pdr/57mm guns, I will need one to go behind my new Universal Carrier
Damiler A/C, just because I want one!
M18 Hellcat, the AFV Club isn't too bad, but it's not very good either
With all the Civilian/staff cars coming out for the dark side modelers, we could use a few on the Allied side, American and British. The Tamiya 48th scale Ford staff car would make a great 1/35th scale kit, and so would a CMP Woody Station wagon with the same front cap. An Austin Sedan based on the Tilly Chassis would be cool too.
And one for the dark side
Italian M11/39 I have the beautiful Brach resin kit, but this has to be my favorite tank that there is not a main stream injection molded kit of! There were rumors last year of a new Italian company doing one, no word on this in almost a year.
I'd take a pile of WWI kits also and a Tamiya FT-17 is a dream I have from time to time!