As long it stays legal tender, I'm good. 'As far as I am concerned', they could make special $1.00 issue paper for the season of the year, or birthdays of scientists.
I expect in time, if 'smart paper' become available, there could be free encoded movie/trailers on each one, making them a collector's item. The government could then be 'paid' to print the $1.00 bill as an anvertising platform. Imagine the weirdness that could result, 'Debbie Does Dallas #12", just above 'In God We Trust'. Woow TMI...
Growing up in England, I'm very used to seeing the sign, in small shops, that says:-
In God We Trust
All Others Pay Cash
So having these words on money makes it a tad silly. Honestly, cash is used less and less, these days, and somehow I can't see the credit card companies putting it on their plastic. As cash becomes less and less tendered, I'm guessing the need for anything on a dollar bill will fade. The dollar bills will probably become obsolete without the need for any major re-design. I can't say I really care what the governments write on their currency, it's not like I have to read it. I realise that there is a principle involved, but I have better battles for better principles to distract me.
I think there is plenty of valid religious basis for removing it, and if that aspect of it was pursued maybe it would happen. http://www.youtube.com/watch?v=WtjwdGeQ7kY
Teddy Roosevelt thought it was a sacrilege. I agree, of course, but for exactly the opposite reason.