There are around twenty data generators in mllib -none of which are presently migrated to ml. 

Here is an example

/**
* :: DeveloperApi ::
* Generate sample data used for SVM. This class generates uniform random values
* for the features and adds Gaussian noise with weight 0.1 to generate labels.
*/
@DeveloperApi
@Since("0.8.0")
object SVMDataGenerator {

Will these be migrated - and is there any indication on a timeframe?  My intention would be to publicize these as non-deprecated for the 2.0 and 2.1 timeframes?