I'm not a fan of gates, in fact I hated them in the games that utilized them. But reason for that was that I thought these games were far too small for gates and travel doesn't cost you anything - well, except for the horrible "autocrashpilot" in X-series
However, these are insignificantly tiny compared to Elite universe (Frontier).
Gates in ED? Guaranteed not as we know them. But if it had gates I'd like it to be like this:
1) A few (3-5'ish) at the start for the 1000 light year (max) range of jumps, to already settled tiny pockets in the near galaxy region. This is huge if we still have 15 light year'ish jump ranges on our ships, but still would need 100 of these in a line to cross the galaxy.
2) If we can affect the settlement expansion of the galaxy through how we play, the devs can provide like one new gate every month (100 months, or 8 years if arranged in a line - game is long dead by then - for most

).
3) Also we the players can choose to cooperate to provide the necessary resources and build our own gate networks (even longer range jump drives for that matter), but near impossible to create one yourself. Or equally
easy as achieving Elite status in FE2 - a sense of hopelessness

Maybe our explorers find areas that is particularly well suited for mining but currently unsettled. Players with help of dev team now cause the settlement of this region, allowing some very dynamic possibilities.
4) Updates can be synched to each players single player game on start of new player profile; select what parts to update (maybe I want to start completely blank, I need to be able to not synchronize anything). If I jump into some MP action, probably forced synchronization with server data.
Given the unpopularity of gates (myself included), this is something I'd be careful about. Settling other parts of the galaxy might make it impossible to find others at all. Even if not included as a game mechanic initially, I'd plan ahead for the possible structure setup so that the engine could handle something like this later on instead of facing the wall if "everyone" demands it. Naturally it also depends on how the game is planned to be supported and further developed after launch to increase its potential longevity.
But hey, that's just me
