They're going to end up getting like 20 games out of Von Miller, and paying for him until 2027.
He's going to be 34 in a couple weeks. His cap hit this year is down to only $8MM. Next year it is $24MM, and it costs them an
additional $8.6MM if they cut him. When he's 36, they can cut him to save about $8.4MM of his $24MM 2025 cap hit.
As for Allen, his hit is over $18.6MM now. In a couple of weeks another $25MM of his bonus locks in. His future cap hits are 47.1, 56.6, 52.3, and 45.3MM$. They could theoretically restructure one more time next year to get a little relief, but the contract is designed to give the team a potential out with "only" $20MM dead cap after 2025, since no additional money locks in between this March and the 2026 offseason.
Looks like the Bills are keeping their window open a crack for this year while planning to eat some pain across the rest of the roster next season, and restructuring everything after 2025.
ATM they have 38 players signed for next year, totalling $226MM (more than their cap # for THIS year)
And they have 19 players signed for 2025, totalling $172MM.
4 of those players (Allen, Miller, Diggs,and Knox) total over $102MM. Looks like the plan is to restructure Tre' White next year, Knox & Diggs the following year.