Major Nelson just revealed that the Xbox Live Marketplace Deal of the Week program will be coming back this Monday, February 23.
The announcement was made during Major's latest podcast (at around 62 minutes in), where we were also informed that Jonathan Blow's Braid will be discounted to 800, which is $5 cheaper than the upcoming PC version. The value-priced Braid will be available for purchase off the XBLM this Monday and will remain 800 until Sunday, March 1.
Microsoft plans on releasing new Deal of the Week content each and every week for the foreseeable future, including content from Ninja Gaiden II and PGR4 as well as the Xbox Original of Fable. Note that all Deal of the Week offers will only be available to Xbox Live gold members. Silver members pay full price.