Similarly, my primary (personal) server is an X10SL7-F with an E3-1231v3 (running FreeBSD). I'm waiting around for Supermicro but I would suggest not holding your breath.
On second thought, I suppose the same goes for Asus with regard to my main workstation (Z10PE-D16/WS with a pair of E5-2620v4's).
My ThinkPads are much older (T420/W530) and I'm not really expecting anything for them from Lenovo -- especially any time soon, although they do put out the occasional BIOS update for 'em.