I don't know if anyone else has spotted this, but Roden has just shown a surprise renewed interest in WWI - true, not with any 1/32 aviation, but still, these all sound very attractive to me.
In their 'In Processing' section you can now see listed some projected kits for 2015(?), including in 1/72 scale; #731 British Armoured Car (Pattern 1920 Mk.I), #733 FWD Model B 3-ton Lorry, and #735 Vauxhall D-type Staff Car.
Seeing these is a major encouragement for me to get on with that old Airfix 0/400. 1/72 scale has its limitations, but it's great for wider diorama scenes. The lorry and the Vauxhall will go great in there with the Handley Page, and hopefully an earlier model Rolls Royce will follow as it did in Roden's 1/35 series.
Mark