Based on the information you have added, I do not think the wife could transfer husband's assets into the trust without them passing through probate, first. The Will will get them there, but only through probate.
I retract my additional comment. If this is in California, I believe you may be able to use a Heggstad petition to have these assets transfered to the trust. You should speak with an attorney to see if this is possible and how you would go about doing this.