This could push .Name .Pro .Travel and some others even further back.
I don't think you can compare .name and .travel to .pro. No business has ever branded themselves "Keyword Name" but there are about 16,000 US trademarks with Pro in. .Travel is logical for travel sites but that is one business sector, it's difficult for any extension that focuses on one sector to grow because it's only going to work with a narrow range keywords.
Most blockbuster keywords don't work with .travel but they are very brandable in .pro, e.g. Poker.pro, Blackjack.pro, Loan.pro, Mortgage.pro, Debt.pro, Business.pro, Money.pro. My view is that the raft of new gTLD's will open people's minds to new extensions and existing extensions like .tv, .me and .pro will do well because in a market saturated with extensions, people will focus on ageing, branding and keyword appeal breadth. Restrictions hold .pro back, when they were slightly relaxed, registrations rose eightfold. If they are removed altogether, registrations will rise by the same multiple again.
I sold Switch.pro for $2,000 in Nov 09 to a Japanese lighting engineer, Booking.pro to Booking.com for $7,500 in the same month, and Touch.pro for $1,500 to an established .com business TouchWindow.com this month. I hand regged Switch.pro and Touch.pro for $99 in late 07 and bought Booking.pro for $2,000 on NP at the end of 07. From my experience, greater knowledge of more extensions is improving my .pro sales not holding them back.
I hold some fantastic .infos, for example Prices.info, Rates.info, Savings.info, Coupons.info but I have never received one offer for more than I paid, and I've only ever sold one .info, FamilyTree.info, and that was at cost. The average domainer's perception of pecking order doesn't always match the bottom line. New gTLDs will make a smaller and smaller splash until people stop speculating altogether because it won't be worth while even for top keywords. I don't think the new ones will push the old ones back, the new ones will become irrelevant because just about anything regged up until now will be more aged and rank better.
I agree that top .coms will be unaffected by the raft on new gTLD's, I added my first LLL.com at the end of 09 based on this logic, but second and third tier .coms will be hit. If you can buy something brandable and memorable like Touch.pro for a relatively modest sum, fewer people are going to buy close substitute key phrases like TouchWindow.com (in this case a substitute for TouchScreen) on the aftermarket.