Hey there. Indeed a more detailed roadmap and timeline are coming. In these early days things are moving fast and there is really no set timeline for new features until every bug and issue has been worked out and removed, the DAO needs a hard fork to allow its auto conversion process to take place, more testing, etc.
For an immediate timeline, I can say that I will have another public RPC node up within about 2 weeks. This will give me time to prepare a stable and scalable infrastructure and will help other nodes reduce their bandwidth as well as improve the stability and decentralization of the Hive network.
The cost of running these full nodes can get rather expensive in hardware, bandwidth, and developer time.
RE: Proposal: On-going Hive chain development; new features, testing, and developer support