Rumour mill: Fujifilm XF 200mm F2 more or less confirmed
So according to Fujirumors, the planned fast telephoto lens is "confirmed" to be an XF 200mm F2. Patrick over at Fujirumors has had a great track record as far as I remember, to me this can be considered to be 80-90% true.
I find this to be a little bit disappointing. As mentioned in my X-T2 reviews, wildlife photographers would be best served with a high quality 300mm F2.8 or faster, which will pair nicely with the XF2X TC to give a respectable 600mm F5.6 combination. This will mean faster AF and cleaner backgrounds for smaller subjects.
A 200mm F2 will yield a 400mm F4, which is a great addition for Safaris but not so much for birding. Oh well, one lens at a time I guess.