Just how much has actually changed in the last eight years? Don't think enough to warrant a new book. Remember, the DEP hasn't had much money to make major changes.
1. The Pike Program was fairly new in a couple lakes and has increased to include other lakes since 2002 (additional data could be added).
2. The walleye program was new which could also use new data.
3. Some of the lakes listed were not electro surveyed up to 2002, but may have since then - that could be added.
4. Some of the lakes listed with electro surveys state that it was only surveyed once, thus data may not be accurate. If there have been more surveys done since 2002, that can be added.
They could add new bodies of water if surveys have since been done. They could also include more info on fisheries; for instance Striper fishing - research, which has been booming lately. Even if there has been no electrofishing surveys they could put pieces in like the Shetucket, Farmington, rivers, Salmon fishing etc.
I don't want to write a story, but you get the idea. With the data and knowledge the DEP already has I am sure if the thought was put into it they could come out with a gem of a book that all fisherman would dig and pay for..