So let me get this right.
(1) You will have to be connected to the internet to play SH5
(2) You will not be able to play any saved games unless you are on-line
(3) The only version of sub available is the type 7 (all classes)
(4) The war only go's as far as 1943
(5) The ships you are attacking will have damage bars showing above them
(6) You will be able to walk through the VIIC and interact with the crew
(7) The graphics of the game are improved over SH3
My Personal responses
(1) This screws anyone who has a slow connection or uses Dial-up.
(2) Kiss the last two hours of game play good bye the server has shut down for one reason or another.
(3) Disappointing as I like the IXC subs as well because they are more useful on convoy attacks having two rear tubes.
(4) So the players of SH5 are not expected to last any further then say mid 1942 then.
(5) Great so when you are attacking a target you will be able to imagine you are standing in a seaside arcade store playing the game on an arcade machine. will this mean you will have unlimited fast loading torpedoes to attack multiple targets at the same time if not then this feature is a waste of time.
(6) To make this worth anything it must randomize the responses of the crew and also react to orders given by the player or else it will become boring to say the least.
(7) From what I have seen this is true but if the rest is correct also this will also be a waste of time as most Sims players will not be seeing it as they will not buy the game.
Silent Hunter 1&2 I never played so no score Unknown
Silent Hunter 3 (un-Modded) 8/10
Silent Hunter 3 (fully Modded and with LSH3) 9/10
Silent Hunter 4 (un-Modded) 4/10
Silent Hunter 4 (patch to 1.4) 6/10
Silent Hunter 4 (Fully Modded) Unknown I got rid of it
Silent Hunter 5 Not promising at this time for sure
Predicted score 4/10 (unless changes are made)

So at this time SH5 is not worth buying unless you like arcade style games.

I regretted buying SH4 and I will not waste money on this version as it stands

Long live SH3 I say.
