Broadcom will try to let go most tenured people 12 months + 1 day after the close. Because CA severance policy is only in effect for 12 months after closing. After that Broadcom will only honor Broadcom time which would be 1 year.
I hope people will realize this. Not being laid off right away is far from being safe. You should actually hope to be laid off within the first year. After that, all of us are screwed.