The observation mission of the European Parliament made up of former Polish President Aleksander Kwasniewski and former European Parliament President Pat Cox will visit Ukraine next week.

"Next week we will go for the 27th mission and hold as many meetings as we need to secure a success. Physically we are exhausted, but our willingness remains unchanged," Cox said at a press conference in Brussels on Wednesday.

In turn, Kwasniewski assessed the chances for a positive development of the situation in Ukraine next week as fifty-fifty.

"We hope that there is a chance to find a solution. I see it as fifty-fifty," Kwasniewski said at a press conference on Wednesday.

Both politicians said they hoped for a positive development.

Let the next week be historic, not political, Cox said.

The Verkhovna Rada will meet in plenary session on November 19-22. Brussels expects that it will adopt of the "European integration" laws – the law on the prosecutor's office, on the amendments to the electoral legislation, and the law aimed at addressing the issue of ex-premier Yulia Tymoshenko.