I would speculate almost certainly. At tops, Hasbro needs to net 12% profit from WotC to meet expectations (they are about 50/50 debt and equity).
There is likely some short term shortfalls from D&D, but with MTG, DDMinis, Star Wars and the other CCGs, it is not too big of hit. Further, book margins are pretty good (it's the inventory costs that get you). Even if 4e core books are slimmer margin to entice buyers, the rest of the books for the year will probably be the full margin and a high volume. (The core books are high volume also.)
From the annual report, I think HAS expects DDI to become a cash cow. $10 a month equal $1.2 million sales a year for every 10,000 users. If we define a successful DDI as one that puts out a Dragon's and a Dungeon's worth of material a month plus a game table, we already know the content can be profitable at $10 a month (given the cover prices of Dungeon and Dragon). (Less leasing revenue or whatever to Paizo.)
I will grant that HAS has been doing so well that 12% may be low compared to the other divisions and WotC may come under pressure to do better. But it certainly isn't a drag on Hasbro and that means a lot.