Yes indeed, coming up soon is the third meaningful vote. MV3!

UK press (Guardian):

  • Theresa May will attempt one final desperate roll of the dice on her Brexit deal, issuing a stark warning to mutinous Brexiters that they must approve her offer by next week or face a long article 50 extension.
  • If MPs agreed a deal, she said, the government would request a "short, technical extension" to article 50, a hint that May plans a third meaningful vote next week.

Link to the article for more.

Earlier reports have MV3 on March 20

Yes indeed, coming up soon is the third meaningful vote. MV3!