Rumor is true or false Rio will not be hosting the event ?
False ... there are no changes to date.
There have been rumors about this almost every year. As of right now, there isn't another convention space large enough at any Caeasar's Entertainment property. The company is building a large convention space behind Harrah's and the Linq Casino (formerly Imperial Palace). It's possible that the new space will be large enough to host the WSOP. If that is the case, then when that space opens, they might consider moving the WSOP over there. While that wouldn't surprise me, it's still way too early to know whether or not that will happen.
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