The #49ers electing to not exercise a $10M option bonus for OT Trent Williams is not a declaration about his future.

The decision simply reverts that $10M back into base salary of which Williams now holds $32.2M.

If exercised, that $10M would prorate at $2.5M in each of the next 4 seasons. SF is keeping the future cap cleaner (for now).

An acquiring team for Trent Williams would now be required to take on a $33M cash/cap hit at the time of a trade.

This option decline makes a move out of SF extremely difficult, furthering the notion that Williams and the 49ers will eventually come to terms on a new contract.