It's not gonna happen in any major way. We may see some targeted adds that take advantage of premium demand, especially in the summer (FCO and CDG come to mind), but as said above, IAH just doesn't make a whole lot of sense when it has to overfly much more prolific hubs and doesn't have much in the way of connecting traffic (except from Latin America, and even then, many of those locations also have service to EWR, IAD, and/or ORD).

I wish it would, but I'll believe it when I see it.