I'll be quietly hoping for one of the NE region examples from batches 2F or 2G with the whiskers. As there are only to be two cab styles in the first instance, and one of the versions is to be in B&G (later, flush, ends), I doubt we'll see one of the first batches with the four marker lights for a while. The headcode-fitted batches were just too numerous and widespread to be ignored.
If that particular model pops up, then I'll happily run one alongside an L1 on a batch of Gresley and Thompson suburbans somewhere in the Whitby area c1958...