I make custom rods using g loomis blanks and I can still get blanks for their muskie rods, so I think even if they change their rods the blanks are still available.
I made 4 costom g loomis rods last summer. A FS 904

flippin stick in IMX, a CB 783 jerk bait in GL3,

a CB 844 spinnerbait rod in GL3

and a MB 845 worm rod.

I used theese 4 rods the majority of my fishing time last summer. Sometimes all I would use was one rod. The jerk bait rod opened a whole new avenue to my techniques and meant more fish ibn the boat, especially smallies in the fall. I think I got 20 back to back one day off a hump....
Anyway I have listing for loomis muskie rods and as of to-day I can still get them.
Now loomis in canada is different because it is all handled by shimano and I have already seen a difference in service
If you are looking for more info pm me but I can't see them droppping their muskie line....
I will say this, a loomis blank with titanium guides and a few extras, rattlesnake skin inlay and custom handles, to personelise the rod makes a really good rod even better and well worth the price.