Not really. They wouldn't waste the surprise of the best cards so they are only showing the worst cards and these cards seem better than the worst cards from Naxx. Nerub'ar Weblord, Anub'ar Ambusher, Stoneskin Gargoyle, Unstable Ghoul, Spectral Knight and Wailing Soul were all as bad as anything we've seen.

http://us.battle.net/hearthstone/en/blog/13665269/beware-the-curse-of-naxxramas-4-11-2014

these were the first spoilers i believe
5 cards :
nerubian egg
undertaker
shade of naxxrammas
dancing swords
baron rivendare

atleast 2 of them are pretty awesome

Why do you pre-order when you can buy it with gold and it is free.

cause $25 isn't much
and 3.5k gold gets you more packs than spending $25 could so if I had the 3.5k I'd rather it go towards packs instead of an adventure

r there any good cards to be worth?

some of the released ones look ok. Hopefully the legends are good though :D

Because even children can get access to 20 bucks..... And my time farming 3500 gold is worth more than 20.

anyone know when this is coming out roughly? like 1-2 months? or more or less?

Early april.

we have no infos regarding "early", only april.