FC Cincinnati are moving up to MLS next year, and like other editions this FM includes the mechanism for their expansion: they're not in the league this year, there's an expansion draft, they're in the league next year. FM2019 opens up the advanced rules a little more - there's a draft tab, there's some stuff dealing with expansion, and there are the "flexible format rules" for individual competitions. I thought this screen was great - when a team gets added to a league its reputation changes.