Well, for sure it will make things cheaper. If all the fielders also pitch - kind of like our high school teams - 11.7 scholarships would more than cover it. I hope no-one tells the NCAA this.
The reality is that with 35+ players, most teams can find their best 6 pitchers and their best 8 hitters/position players and have them be different people. If sometimes they are the same people, then they are.
The question is, will more college coaches, at all levels, recruit players by telling them they can try two-way? It's very appealing to some players.