There is one manufacturer who makes long focal length eyepieces in the 2" format, all the way to 85mm,
Russell Optics - 2" eyepieces.
There is one thing you need to remember - the ultimate limiting factor to the maximum True Field Of View (TFOV) is the diameter of the barrel, regardless of it being 1.25", 2", 3", etc. You can get a 100° AFOV eyepiece, but the longest focal length obtainable by a given barrel size will be that which is allowed by the barrel. You won't see an 100° 30mm in 2" - it's just not possible. The longest focal length that will allow a 100° AFOV in 2" is around 25mm.
The above 25mm EP will exhibit the exact same TFOV as a 50mm 2" eyepiece - the 50mm being limited by the barrel/field stop.
Why would you want a 50mm eyepiece? A 100° eyepiece is not for everyone. A 2" 50mm Plossl eyepiece, such as the one from Russell Optics, has roughly the same AFOV as all other Plossls, approx 52°, which still makes for comfortable veiwing. This EP is actually really nice in a C8 and similar and larger Cats.
The longer focal length EPs all show the same TFOV, but as the fl gets longer, the AFOV gets smaller, like looking through a longer and longer pipe. But they serve a purpose that satisfies the requirements of the folks who purchase them.
I have one of these 50mm plossls from Russell Optics. It produces a lovely image in my big dob, though I am aware that when using this EP with this scope I am effectively stopping down the scope from 17.5" to something like 8". In my C8 out bush, it is also lovely. This EP is very much only for when one is observing out bush with any type of reflector as the shadow of the secondary will be all too evident under urban skies.
Alex.