The person who sent me the info on Novartis suspension contacted the company, here is what she said:

I called Novartis Friday to find out about production. They said they have no public plans to start producing Sentinel but would release info in the next three months, for whaterve that is worth.

Some places online have some pills but they have all jacked the price way up and will only sell 2 months at a time. So ...

My vet gave me an RX for Trifexis...