One disc editions:
"Charro!", "Kissin' Cousins", "Girl Happy", "Live a Little, Love a Little" and "Stay Away, Joe".

Two disk editions:
"Elvis: That's the Way It Is" and "This is Elvis".

Deluxe editions:
"Jailhouse Rock" and "Viva Las Vegas".

The editions of "Jailhouse Rock" and "Viva Las Vegas" include a documentary, "TTWII" includes both the original and SE editions while "This Is Elvis" includes the theatrical version and much longer TV version plus other material. The single disc releases probably don't include any extras.

Also mentioned is "Tickle Me", but no details were given.

Source: Elvis News