Most of the Liveatc feeds are made available by volunteers who have offered to host a feed. If a feed disappears (like BIKF as you mentioned), it is usually because the original provider of that feed is no longer able to host that feed for whatever reason. For BIKF to come back, someone would have to be willing to provide the feed. And in the case of splitting up a single feed into more than one feed, the same limitations apply: the feed provider would generally have to be willing to do that (add the extra radio(s), power supplies, cabling, signal splitters, etc. needed).
