The French president is scheduled to come to Japan next month.
Literal
Next-month France [possessive-の] president [subject-が] come-to-Japan [schedule-予定] is.
来日 ('come to Japan,' literally 'come-Japan') is a terse one-word compound focused on the arrival itself — common in news headlines and diplomatic reportage. Contrasts with 訪日 ('visit-Japan'), which emphasizes the formal visit. The possessive の links フランス to 大統領 — 'France's president.' ~予定 marks the schedule.