So this image has been surfing around lately and you would usually label ones like these as fakes but something very Intiresting about this is the fact that it has 2 bug Pokemon with names that seem similar to the Japanese name of Cutiefly (Similar sounding) and the typing was spot on Fairy/Bug... If this does turn out real what does it mean for Sun/Moon? Well...
1) Cross gen evolutions will be back and we will get 2 eeveelutions
2) Missingno will now be canon
3) There will be around 90+ Pokemon... Since pseudos are usually shown right before legendaries we can assume that the legendaries start at #811 and if we include the 4 guardians, box legends and 3rd legendary, and Megearna, that brings the number to #818 or about 99 new Pokemon. If we include Zygardes new formes it'll be 101. If the cores also happen to be Pokemon and if there are 5 then that will bring us to 106 new Pokemon not including mega evolutions