The below pictures were all taken on the Three Cross Laverda stand at the 1999 NEC Bike Show.
The above engine was kept inside a perspex case away from curious prying fingers.
The rest is still a matter of speculation. The bets are that it'll be housed in an alluminium beam frame and there's likely to be 2 engine sizes, i.e. 900cc Sports and 1200cc Sport/Tourer - especially if the proposed new World Endurance Series or WSB is to be challenged :-))
However don't expect it to be much bigger than the 668/750S models, which is bad news for the many 6 foot plus riders of the old triples!