I've just finished the 'three-up' Men at Arms for the English Army boxed set of Agincourt to Orleans.
The archers have been on our site a little longer and have now just gone into tooling. The period, 1415-1429, as with the metal range, covers the first use of full-plate armor. It's a great look, being mostly rounded and 'globular'. Although I've described these as English, they could be used as French, too. The only differences being the English tending to fight in 'white' uncovered armor a little more than the French. With armor styles, I've tried to cover the main types used during these 14 years. Things changed quite fast, especially with the basinets at this time. More plates were being added to the basic basinet with aventail, until the aventail disappeared altogether and you had the full great basinet.
The houndskull visors also became globular during this period. Shields for Men at Arms had more or less been dropped from use in the field as the armor became more complete, so there'll only be one on the sprue. All the visors will be separate, as will the 'orle' or decorated circlet which was typically English. Two of the bodies have jupons, and the other four are in 'white' armor. I've designed these so the arms from the Wars of the Roses sets should be interchangeable, the shoulders are the same width at least. So with some of the 'white' armored bodies (i.e. the ones in the great basinets), you should be able to bridge the 1430-50s gap with the WotR arms. There's no release date on these yet.