I whole-heartedly welcome a return to a just-above-goofy-level of witty banter, silly humour, intrigue and mild jeopardy type of movie content.
However..
From that trailer, the script is seriously lacking.
John Hamm is a watchable and capable actor, but he is miscast for this role. It needs a comedian that can act, not an actor that can.. um.. crack a joke.
Also, the last line of that trailer is not the zinger it thinks it is.
There's also a glaring absence of this: