Good question.
Team is currently in process of another third party security review of Consensus and other components. We are planning to make these public too.
We are also planning a threshold ECDSA review and more reviews throughout the year.
The upcoming reports we publish will probably be more focused on specific features / components because one big lesson we learned is that smaller reviews tend to be more manageable, faster, and easier to publish. I think it is reasonable to expect multiple of these reports in 2022 across multiple components.
Without going into specifics, yes, the plan is to work with multiple security firms as well. I am being overly deliberately vague and careful (perhaps too much) here because I want to make sure I don’t accidentally leak anything our partners may not want us to. This is my own discretion, they likely may not care, but I rather be safe than sorry.
@robin-kunzler may correct anything I said above, of course. He is the true expert and point person within Crypto team.