What is the status of a potential Putin-Trump meeting?

According to Putin's aide Ushakov, a meeting between Putin and Trump is unlikely to take place next week. This statement came after four and a half hours of Russia-US talks in Saudi Arabia. The discussions appear to have addressed conditions for a future summit between the leaders, but the immediate prospects for such a high-level meeting have diminished, creating continued uncertainty about when the two leaders might meet to discuss critical issues including the Ukraine conflict.