I need to book 2 business class tickets from USA to Europe with multiple less than 24 hour layovers in Europe. I only have enough miles for one ticket currently. I want to book one ticket before the deval to lock in at least one Ticket. I plan to book a ticket operated by united only, as it will reduce the amount of miles required for the second ticket after the devaluation. My question is, as united does not operate flights within Europe, will the ticket issued after the deval be charged the amount of miles for a partner ticket (140,000)? How will the deval change the free layovers within 24 hours on a partner airline?