The last news I had on Marston was from early August.
He's gone through a lot of redesigns, including his hair which was re-sculpted multiple times and was in the finishing stages at that point.
The revolvers and rifle have been improved, and the spurs will be die cast this time to avoid the potential breakages that happened with some of the Arthur figures. His clothes have also been fixed as LIM promised early on, and will be going through additional weathering.
As of the first week of August the sculpts and almost all of his accessories were cast.