It will be on scholarships (current FCS is 63, FBS is 85). The difference will be the additional stipend to players (@ at 4,000 per player per year thats another 680,000 per year (85 mens, 85 womens)), average attendance, an other items that raise expenditures). Not a lot of money but I would bet it will continue to rise. For a conference outside of the P5 not getting a huge TV contract, the additional money for stipends, the ever rising cost of competition (coaching salaries, facilities, etc) may make it a losing proposition to join the new division.
Another thing to consider is the fact that most lower level teams lose money on their football programs because they all have dreams of making it big, and its thought of as a "front door" for the university. In these cases the University is heavily subsidizing the football team through student fees and University money. Right now , there is a slim chance that those universities could get to a big game and provide the university with all the recognition they have dreamed of. In the future with the new division, they would have to pony up even more money that they already don't have. I expect most won't choose to spend more money to fund a pipe dream.