In Dungeon & Dragons Online, all character starts with a feat giving out a 20 hit points-or-so bonus so that they'll last longer in combat and better wade through the little creatures at the beginning of the game.
Please, let that not happen in Neverwinter.
I hope that instead, we will get better adventure design which will allow us to make the most out of the hit points/healing surge resources granted by default in the 4E player's handbook. A Fighter's 15+Constitution Score or a Wizard's 10+Constitution Score should suffice.
If an adventure is a solo adventure, design it with according opposition to match that (read: lesser numbers/minions) rather than give out an easymode feat like DDO. If it's not, then it's not and a PC will either need henchmen or other PC companions to get past larger groups of enemies.
That's part of encounter building guidelines in the 4E Dungeon Master's guide, and I think it's good advice. Even the previous Neverwinter Night games did not boost initial hit points (though they soon boosted PC levels to 3 to make them less squishy) but in 4E you shouldn't even need to - initial hit points are already higher, and anyone who wants to be tougher can invest either in the Toughness feat for extra max hit points, or feats like Durable to grant more healing surges.