The request is now with the speaker's office
Now that the request has been made, we could see a three-hour debate on the subject at any given time. McGovern's request here comes with a potential vote to force May to rewrite her letter to the EU to include a longer extension option.
earlier, it's part of an effort of parliament to try and take control of Brexit proceedings from the government. Of note, there's also talks now that we could see a re-table of the Benn-Cooper amendment last week (which failed) to debate on Brexit next steps and pave the way for indicative votes. Just something to take note of as well.