CBR suggests one of the rumors is that they might show up:
http://www.cbr.com/star-wars-the-las...ts-and-rumors/
What do you suppose the odds are that either one will show up in some form in the next installment? Frank Oz does a lot of voices so it's possible he's doing some other character's voice but this is definitely a good sign! When we last saw Obi-Wan at the end of Jedi he was in the form of Sir Alec Guinness so it's a safe bet he won't be returning! But they might do a flashback. Maybe having something to do with Luke as a child. The article suggests that he might have something to do with Rey's parentage but she seems a bit young to have had anything to do with him. Regardless, it would be great if either one of them showed up!