The Enve will always be an option with the 44mm HT... right...?
There are two dimension to worry about, steerer diameter and fork length. The 44mm head tube should be future proof, as it allows steerers up to 1½" with external cup headsets. Fork length is another matter - you can't really have a frame which will take a ~365mm road racing fork, which might take 700×28C at a pinch but may not like mudguards even with a 700×23C, and a ~395mm CX/Touring fork, which will take big tyres and full mudguards, and be happy with both It's decision time..
There are two dimension to worry about, steerer diameter and fork length. The 44mm head tube should be future proof, as it allows steerers up to 1½" with external cup headsets. Fork length is another matter - you can't really have a frame which will take a ~365mm road racing fork, which might take 700×28C at a pinch but may not like mudguards even with a 700×23C, and a ~395mm CX/Touring fork, which will take big tyres and full mudguards, and be happy with both It's decision time..