Frank Sinclair, Paul Dickov, Lilian Nalis and James Scowcroft are to be questioned about claims of sexual aggression and breaking and entering whilst Keith Gillespie and Matt Elliott are to answer allegations of another offence.
Nine Foxes stars were originally arrested after three women complained to police at Alicante airport.
Danny Coyne, Nikos Dabizas and Steffen Freund were released without charge.
Leicester's chief operating officer Paul Mace said the players "consistently and strenuously denied" the allegations.
The rest of the Leicester squad have flown home from their training camp in La Manga.