I don't think burnout is likely. There are already some folks streaming the game for 5-8 hours and sometimes longer than that and they are still enjoying it
then i am a weird person because i have burned out, but well, first couple days i played ED almost 15 hours/day
also my friend who is not big space sim fan told me that starts to get bored and he just played couple hours/day so far
anyway i just meant that we all have our limits and the game atm has only as much as it has, streamers earn money by streaming so they are different animal, but we all play to have fun and repetitive things are hardly considered fun especially knowing that there will be a wipe
i played ED for more than 3000 minutes before it started to feel boredom, i am afraid of the final release and all expansions, it might require millions of minutes of play time to get bored
but for new players who have not much time even this state of ED will be fun for months, just because it takes like 20-30 hours to get hang of the flight mechanics and another 50 to make all moves come naturally and without use of direct brain power
