I'm thinking he'll end up over, with somewhere around 6 or so.
In some ways, his season this yr reminds me a little of Ware's rookie season, in that Ware kept getting close a ton during a streak in which he went sackless for 8 straight games. But he was active and made alot of plays all over the field and kept getting "close" on alot of pass rushes.
By the way, Ware ended his rookie yr with 8 sacks, 3 forced fumbles and 1 pass defensed. 3 of the sacks and all 3 forced fumbles came in the next to last game of the yr vs Carolina.
And no, I'm not saying Spencer will end up like Ware, only that there are some similarities.