I think the vast majority of the arguments against suicide have theological beliefs and more people are rejecting religion and even the religious beliefs are changing over time, suicide will become less of a taboo.
Obviously, it's not intentional of the theological cults, but they need to adapt to modern culture.
Technological advances such as the internet and social media also play an important role, they show the world as being much smaller than our previous generations believed, also makes people see other parts of the world and have an insight that travelling far away isn't going to change much of the lifestyle. Culture might change but most people will be the same.
Competitiveness will increase a lot, since we are dealing with global competitiveness now instead of just the regional competition.
IMO the reccuring ineffectiveness of therapeutic procedures and the understandable fear of medications due to side effects will also play a major role
Al this: Yes, it will increase suicide rates.
I guess it's a bad thing, but, forcing people to live a undesirable life is equivalent to torture.
So maybe suicide and euthanasia will be a constant subject in media.
Well, whoever survives, might wait and see.