I think that success of SaaS will depend even more on the people than tech. Up till now, if there is one major player in the field even with poor customer service, you could do very little. It is hard to compete with 20 different things you need to build to get first customers. However with all AI tools newcommers can take advantage, as building integrated solution is available provided you solve human relations, you listen to clients and solve for their problems. From buyers - you can expect more flexibility from vendors. Potentially SaaS companies will become smaller though.