If Josh lost an equivalent of 2x games lost, and then dividing 41 Total TDs by 15 games of actual playing time, he averaged 2.73 TDs per game. Thus taking 2.73 TDs multiplied by the 2x games of lost playing time, that would equate to plus/minus another 5.46 TDs. So, in simple terms probably around 46-47 TDs.
Applying the same logic to passing/rushing yards would have been around 4228 passing and 602 rushing yards.
Note: That's if the 2x games of lost playing time were circumstantially competitive as noted below by Mr. WEO.