Knowing those "Newsletter" things from various other games, "Addon will be released", "big update", "new items" and so on.
Well, may not send by a free community thingy, but to be hnest: does it matter?
Ofcourse publishers doing it by hoping to earn some money, may here it should be done to get some drive again.
May some will return..
Most people (of the retuners) will probably play a few hours or days and than will leave again, but some of these will be hooked again and play for some longer time - just fixed by a short, good looking reminder.
May send those on a kinda regulary base, like once a month or w/e, so may some people return by knowing things still happening here and it's not a 'one timer event'.
Think once a month is good for not being spammy, but also not to long tho show "hey, still got some action here".
Since FL itself was released back in '03 the chance is low to get new people into it, but there's a good chance of reactivating the "old" people.
