I do not know if I would use the term " outdated" for the Havoc. There are still many, many bows out there from various companies that utilize a traditional single cam on a 33-34 inch axle to axle length bow. Plus, both the command cam and the versacam have some advances over most of the other traditional pwc style single cams on the market in terms of their adjustability in draw length and/or percentage of letoff.
Plus, if that particular Havoc is equipped with the XT2000 limbs then I definitely would not worry about having outdated equipment as they are still in use today...all be it a slightly shortened version of them.
On the other hand, yes, Hoyt has moved to the Cam and a half design and no longer produces the Versa or Command cams for use by the regular consumer. Is it a " step up" from previous years' designs? Well, I guess that depends on who you talk to.