Like all other manufacturers, they can't truthfully answer, there are so many variables that they have no control over. Suppliers, materials shortages the war in Ukraine ( in the UK the effects of Brexit) the push for carbon neutral, et al.
Before I ordered my grenadier I talked to Toyota and L/R, both said to be honest you're looking at 12 months. Even with IA worst case scenarios I think I'll still better the 12 months. So after I ordered I planned my life around a 12 month's delivery. If it comes any sooner it's a bonus, if not it's we are were we are.