That's what I reckon it'll be - the first 'steps' on 'space legs' by enabling us to get out of our chairs and walking around our ships. It would make sense given the multicrew in 2.3. However, I'd prefer 2.4 to be a significant content update for exploration, such as landing on planets with basic atmospheres (but not all the way to ecosystems, life, water....), better search functions to find surface objects such as the geological and organic features, and being able to set a surface coordinate as a navigation target.
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Others things 2.4 could include might be ship naming or trumbles? I'd love to see trumbles....or life in all these stations, ports etc we land at as there never seems to be anyone around....