Hauxon

The lineup is quite complete as it is. The only lens I'm actually waiting for the 33/1.0. I think it would be wise to do version II of the original primes, especially the 18 and 60. The 60 would be great with the same optics but faster focus and possibly OIS ..and a retractable hood. They could make a 200mm f/2 or a 300/2.8 but I would probably not buy em since the 100-400 is all I need.

I would say if you plan on keeping a Canon body for the long run and already have a good copy of the EF 100-400 (especially if it's version II) I see no point in buying the XF 100-400. If you however plan on switching completely the XF 100-400 is a no brianer. The lens is about the same size as the Canon lens but is about 200 grams lighter and that's probably due to using plastics in the body. The Canon lens feels more solid in the hand and I was a bit worried about the Fuji lens being "cheap" ...but it feels great to use. No complaints here.

14, 23 and 56

I had the 60 few years back and optically it's fine and still provides shallow enough dof for portraits. It was slow to focus but secure and it's probably much better now with the latest firmware upgrades. I kind of miss having a macro lens ..but he 56 is just osom, and I can't justify having both. It's got a beautifully made metal lens shade and I wish Fuji would supply those with the newer lenses. Here's a macro shot with the 60 macro. It renders beautifully. I also wish they made it 1:1 so if you want to shoot smaller insects (subjects) you will need to buy the tubes.

I´ve had mine for a week now. It seems to be the lens we were all hoping for, it's very sharp wide open at 400mm and focus speed and stabilization seem good. I had the Canon 400/5.6 L before and the 500/4.5 L. The 500mm lens is the best lens I've ever had and worked great with the 1DsII I had at the time. The X-T1 + the XF100-400 may not be there but getting closer and hopefully the X-T2 will have improved tracking capabilities. Overall I'm very pleased with the lens. Here's a test shot with the X-Pro2 (pre-production model) + XF 100-400. Lame subject ...but great feather detail. I also think it looks quite nice on my GS X-T1.