If you think about it, just because a TMP channel is uplinked does not mean it will be made available. MOJO was uplinked for years, IIRC, without ever being made available.
So, when the uplinks are backed up by other sources, that is when we can expect to see some new channels (although, of course, nothing is certain until you see the A in the uplink).
By the way, Logo is a Viacom channel, so it may already be part of the previous deal, simply awaiting launch in HD.
PS Based on what we are seeing, I am guessing that 48xx is a special test channel area for employees to check quality prior to a channel being made available...