The launch has been postponed for 24 hours due to the additional testing of the Breeze-M booster block.
The launch is now planned for 00:25 a.m. Moscow time on July 31, 2020, according to the Russian federal space agency Roscosmos
tass.com
By the updated info, Express-103 will work at 96.5e position. 103e is its reserve position. Probably this sat will be relocated to 103e later, after Express-AMU3 launch to 96.5e position, or it was decided to swap the positions of these satellites, it isn't clear at the moment.
At the Baikonur Cosmodrome, prelaunch preparations continue to launch the Proton-M carrier rocket with the Briz-M booster and Ekspress-80 and Ekspress-103 Russian spacecraft. According to the working schedule, in the morning of July 26, 2020 the rocket was delivered to the Site No. 200 launchpad...
en.roscosmos.ru
Both satellites will use electro-propolsion engine to reach the geostationary orbit.
Express 80 will travel to the GSO within 152 days, while Express 103 will travel to the GSO within 160 days:
С космодрома Байконур на 31 июля 2020 года в 00:25:19 мск запланирован пуск ракеты-носителя «Протон-М» с разгонным блоком «Бриз-М» и российскими телекоммуникационными космическими аппаратами «Экспресс-103» и «Экспресс-80».
www.roscosmos.ru
The in-orbit testing of both satellites is schedulled to January-February of 2021.
В перспективе спутники должны переместиться на свои геостационарные орбиты при помощи собственных электрореактивных двигателей
tass.ru