President Volodymyr Zelensky requested Parliament Speaker Andriy Parubiy to gather the urgent plenary session on Wednesday, May 22. Several sources of information confirm that, such as the respective appeal that the President handed over to Parubiy and a tweet on Zelensky's account.
There's also a source at the Parliament that confirmed that such session could take place Wednesday.
On May 21, the President signed the decree on the dismissal of Verkhovna Rada and appointed the election on July 21 as the decree#303/2019 reported. The Cabinet of Ministers is ordered to provide the financing of the elections. The decree comes into force from the moment it is published.
Earlier, after the consultations with President Zelensky Oleg Lyashko, the header of Radical Party of Ukraine, said that snap elections to the Parliament of Ukraine might be held on July 21.
Later, Zelensky’s Advisor on legal issues Andriy Bogdan confirmed that snap elections to Ukraine’s Parliament might be held on July 21.