Why ask for more of the same ?? Request a WW1 game based on the German side using graphics of SH4.
If anything such a simulation would provide a welcome selection of new subs, naval vessels merchants & aircraft plus other opportunities if the tradition of creating strictly historical simulations could be slightly expanded.
What it needs to appeal to a wider audience is .....
1. A back end story, intrigue & player involvement in strategic decisions of a limited nature.
2. SH3 style modeling & walkthrough capability of all sub compartments complete with crew members who have a range of conversation & replies to questions.
3. Use of 1st person scenes & cutscenes in base to replace the one page medal ceremonies, upgrade screens & briefings.
4. WW1 operations including prize rules, minelaying, submarine nets, Q Ships, limited scale wolfpacks.
By back end story .... perhaps a growing romance between the commander & admirals secretary carried on between patrols plus a dynamic espionage network involving 1st person meetings, planning - insertion - extraction - resupply operations by the commander acting as a trusted confidant of the admiral & naval intelligence.
For a dynamic espionage - intelligence network it requires a map of England, Ireland, Orkneys, Shetlands & other small islands where gradually a network of coastwatchers, radio operators, spies in towns & dockyards are installed.
These assets provide real time eyes on the ship reporting and sometimes additional information and the commanders influence at admiralty-intelligence meetings partly determines where these limited assets are to be located.
Concentrate on spotting coastal shipping, attempt deeper penetration of docks to learn of convoy routes, or concentrate on the movements of British naval forces ?
For instance. A convoy is shown leaving Liverpool with the traditional direction tail, speed & size. With the help of spies a destination & perhaps expected date of arrival is additionally provided. The volume & accuracy of information could be partly based on spies experience & rank similar to crew experience.
Possibilities & mechanisms that spies can be occasionally discovered need to exist & hence their flow of information from a particular location could stop till a fresh agent can be inserted .... just like dead sub crew needing replacement.
So rather than haphazard reports all over the place the provision of information becomes more specialized & accurate .... and influenced by the players decisions.
More of the same or fresh ideas