I'm sorry if I missed the memo, but it seems like it has been close to two months since the last chapter pack. Not that it is a huge deal, but I was looking forward to some of the new cards shifting the meta for regional season, but not sure if that will happen now.

Does anyone know if we can expect these products by January? (ie Song of the Sea cycle)

I was wondering the same thing. This feels like longer that usual between cycles.

2ish months between cycles seems normal to me.

According to Upcoming page Reach of the Kraken is coming in January.

Fun facts on the time period between cycles for the last 3 cycles:

Here to Serve was released on 9/23/2011
Tourney for the Hand was released on 10/19/2011

A Poisoned Spear was released on 3/21/2012
Valar Morghulis was released on 5/9/2012

I don't think there is a specific pattern involved. There may be priorities set with the printer but I don't know anything about that between cycles.