According to Mirror, a BBC executive said James May and Richard Hammond aren't willing to continue Top Gear filming without Jeremy Clarkson.
When BBC suspended JC following the "fracas scandal" they said remaining Top Gear series 22 episodes will not be aired. However, shortly after the official announcement we heard a rumor about BBC's plans to broadcast the three episodes, regardless of the verdict in Jeremy Clarkson’s case. Now, Mirror says BBC actually wanted to air the episodes, but James May and Richard Hammond refused to film the studio parts without friend and colleague JC.
A BBC executive told the British publication “they didn't want to do it without Jeremy so the talks didn't get off the ground” and "there is a feeling that it is all of them or none of them." BBC probably isn't willing to give up that easily taking into account last Sunday evening's audience dropped by four million viewers compared to the last aired Top Gear episode on March 8.
As a final note, the petition on change.org to "Bring Back Clarkson" has almost reached 1M supporters in just over a week.