Exactly my point. I would actually prefer Job/Sub Job with role clearly defined and traditional. I thought it was a great system and had enough flexibility, yes /NIN did kinda break it but as long as SE don't make the same mistake and keep thing balanced it would be great. I really don't like the mish mash we have in FFXIV and I don't think anything other than a complete strip and rewrite will change it. Being able to cross class is a balancing nightmare and is most likely the reason all the classes are meh because if they had something great you would level that class just to get it to stick it on something else.
If they keep the current system and build on it then it's going to need a lot more restrictions and class specific abilities and traits.
This is also my other point a lot of the current players don't want to be "pigeon-holed" (hate that phrase) but maybe a lot more people actually like filling a certain role. You need to fill a certain role, if you want to be a Tank you level PLD, if you want to be a healer you level WHM, if you want to be a DD you level DRK or another DD class and so on. Classes need definition and with the current system I can't see how it can be achieved. I have read a lot of the suggestions and they all seem to just be putting a plaster over the underlying problem with the system.
Like I said it will be interesting to see what SE has planned and can't wait for more info.