Legal Question in Wills and Trusts in California

It depends. The trust is still in effect, but whether it is revocable in part or in whole depends on the language of the document.

The Trustors [H&W] can add to the Trust anytime. If H is dead, W can add to her 'survivor's trust'. At H's death, there should have been a division of assets if it is a typical trust. W should see an attorney and bring the Trust. That it is from 1994 doesn't affect its validity; trusts are intended to stand the test of time.

it is possible that the trust could be amended or that a new trust would be necessary to accomplish your goals and objectives. to determine this, you need to consult with a qualified attorney to review the documents and provide recommendations.