In general no they do not have nibs.
I have seen a ton of Orvilles here in Japan and none of them have nibs - but you never know, they may be some oddities out there (but they would be an oddities if you do come across one).
My Fujigen Epiphone SG is from a short lived line from 1999 - 2000 (for the Japanese market only) where left over Orville stock was relabeled 'Epiphone' and it does not have nibs.
Orville by Gibson, yes - different build, even had some U.S hardware in those. Even in Japan 'Orville by Gibson' is rarer to find than straight up Orville guitars.
To confirm, Orville guitars = no nibs. Orville by Gibson = nibs
I saw an Orville by Gibson last month for just under 100,000 yen - and it did have nibs.
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That link is featuring a non "reissue" line Les Paul with a special top, and it is only the so-called "reissue" models that have years in the model number (i.e. 57C, 59R) that have nibs.On this site it is said, that Terada made LPs did not have nibs, Fujigen made LPs had them.