[mst]

I guess it is at least partly a marketing driven list.

To give a complete picture, these lenses are not considered future-proof according to Fujifilm:

XF 14/2.8
XF 16/1.4
XF 18/2
XF 23/1.4 (the old model, not the current LM)
XF 27 (non-WR, but since they share the same optics it's likely not on the list simply because it's discontinued)
XF 35/1.4
XC 35/2 (surprisingly, since it shares the otics with the XF 35/2, which is on the list)
XF 56/1.2
XF 56/1.2 APD
XF 60 Macro
XF 10-24
XF 10-24 WR
XC 15-45
XC 16-50
XF 16-80
XF 18-55
XF 18-135
XC 50-230
XF 55-200

So, of the whole Fujifilm X lens portfolio, 20 lenses made it on that list, 19 did not.