I can understand that some anglers think that barbel could be seen as the "new Carp" some anglers have adopted carp fishing methods to fish for barbel, even by introducing a new description of "Carbeling", I can see that this particular method of this type of barbel fishing is attractive to some anglers, barbel fishing of the past, in the olden days, was perceived to be a very private, and in some circles to be an elitist pastime of a one to one pursuit of a big fish, very few anglers were interested in catching any barbel, barbel anglers then were really only interested in the catching the elusive and exclusive double figured barbel, we now have anglers happy to catch any barbel via a process of elimination as they hope for a big fish and certain anglers follow a particular approach, matching rods, bait runners, alarms, bed chairs and bivvies, hence the carbeling tag, barbel fishing has become a much more social event, and this in itself, comes from within the development of carp fishing. The days are long gone (for some), of sitting in a remote swim, alone on a river holding the rod and touch ledgering a ball of sausage paste, in the hope of a monster barbel. The catalyst for the move to carp fishing methods for barbel was without doubt the development of the hair-rig and the self hooking bolt rig, it meant you could turn up, bait up, cast out, clip up, switch on and crawl into you sleeping bag and go to sleep and be woken up only when a fish hooked itself, very carp like to me.
But in answer to the original question:
No, barbel will never be the new carp, because barbel are in severe decline in all the rivers where they were either stocked as mature fish or as a indigenous species of that river, the aquacultured barbel resource will never be able to successfully keep barbel stocks at a particular level that they once were, because barbel grow too slow, and are very susceptible to most things that are out to kill them i.e. industrial pollution, chemical pollution, loss of habitat and more importantly Otter predation, whereas Carp have an whole industry surrounding and supporting their very existence, if I wanted to create a lake full of 30 and 40lb carp all I need is the lake and a load of cash, try creating a sustainable a barbel population in a river with just double figure barbel swimming in it.....impossible!
Within the next 10 years , barbel fishing be it with either cane and pin or with a tripod, baitrunners and alarms, will be a thing of the past as we know it now, I would hope there will always be some barbel around, but I think our rivers, we be full of chublets, roachlets, breamlets and waspy perch....