Going into a topic like this it must be made clear players have different roles on different teams. A Ruslan Fedotenko for example will be asked to do a lot more here than he was in Tampa, Mike Comrie will be relied on for much more than he was in Ottawa and Bill Guerin will not have a strong scoring support cast like he had in Dallas or San Jose. To say nothing of what a Bergenheim or Tambellini may produce in an expanded role. 
Of course games go well beyond numbers and hard statistics, but just for this topic let's look at where the numbers stand among the forwards no longer here vs who was added. 
 
Player      GP    G     A      Pts      +/-      Pim   PPG Shots      
Blake       82    40    29      69       1        34    14   305
Kozlov      81    25    26      51       12       28     5   152   
Yashin      58    18    32      50       6        44     5   203     
Robitaille  50     6    17      23      -2        22     1    74 
York        32     6     7      13      -9        14     2    46 
Asham       80    11    12      23       3        63     0    85    
Smyth       18     5    10      15       0        14     1    49     
Zednik      10     1     2       3      -2         2     0    15
Totals     411   112   135     247      +9       221    28   929
Because Bergenheim is likely going to be on the club an overestimation of his stats will be provided. Same for Jeff Tambellini to balance out eight players for eight players.
            GP    G     A      Pts      +/-      Pim   PPG Shots      
Guerin      77   36     20     56       10        67     9   225
Fedotenko   80   12     20     32       -3        52     2   154  
Sim         77   17     12     29       -1        60     2   141  
Comrie      65   20     25     45        E        44     7   125
Vasicek     63    6     16     22       -5        51     0    77 
Bergenheim  78   15     25     40       +7        46     2   150
Tambellini  79   10     20     32       +2        38     3   125
            GP    G     A      Pts      +/-      Pim   PPG Shots 
Totals     519  116    136     252     +10       358    25   997
Comparison: GP    G     A      Pts      +/-      Pim   PPG Shots 
O6-07:     411   112   135     247      +9       221    28  929
07-08:     519  116    136     252      +10      358    25  997
I was a little generous with Bergenheim's numbers but in a top six forward role twenty five assists and fifteen goals after his solid production in the SEL last year after leaving Russia does not seem a huge stretch. 
Tambellini's numbers were scaled back because I don't see him on a top two line and right now it's a stretch to see him on a third line as a left wing with Fedotenko, Bergenheim, Sim, Hilbert and even Simon all left wings as their primary left winger. 
Edit 8/20: I took away two goals from Tambellini's estimate but did not subtract two points from the teams totals, that has now been corrected.
At this time the club is relying on someone from last year's squad to replace Poti's numbers and Sutton to replace Hill's offense. I'm brining this up because the defense helps contribute to the numbers the forwards produce. 
Overall this will likely not be reflective of the finals numbers for this forward group vs last year's. Too many variables can change performance one way or another I substituted four players who played less than sixty games on this roster last year.
Just a little number crunching on a quiet day so far but one folks who compare last year with this year will likely make. 
Comments and discussion always are welcome here or on the message board.

