Yes, there would be more to quest added in future. Current ones are meant to be daily quests and there would be others that would be following same pattern of 1 unique reward, then perk point and then repeatable for few spirit stones. Questlog in camp actions do hints which ones new quests would show in next few builds. If not isue of finding some good reward for first completing each quest that fit theme of quest they would be faster added. Highest chance for new quests is for Feral Imps (1 repeatable + maybe second not repeatable one) and maybe Feral Demons. Others like Minotaur hunt are on even earlier stage of plainning.
For highest rank - yes there would be possible to get to Gold or Platinum rank someday in future. It may take quite long as each tier is for secific enemies lvl range and for highest rank we not have atm enemies ingame....yes that mean even if I make Marae as target of quest she's too low lvl atm for been aim of highest rank quest form Adventure Guild (highest rank I evaluate will be hunting mobs on lvl's at least 120 or 130).
For highest rank - yes there would be possible to get to Gold or Platinum rank someday in future. It may take quite long as each tier is for secific enemies lvl range and for highest rank we not have atm enemies ingame....yes that mean even if I make Marae as target of quest she's too low lvl atm for been aim of highest rank quest form Adventure Guild (highest rank I evaluate will be hunting mobs on lvl's at least 120 or 130).