Wonder how will this affect us... good or bad?
I suppose difficulty may go up (but not by insane x10 number like year ago?), but perhaps also drive value up (demand)? Or will all the new users-miners just start generating to get free coins?
Value and difficulty are intricately interwined. Difficulty is proportional to the cost per bitcoin generated, if bitcoin increases in value then it becomes profitable to generate, more people generate and difficulty goes up. An interesting consequence is that difficultly can be expected to halve everytime the rate of generation halves.