Great question but I'm unclear if you mean future developments in the economy that can effect future opportunities, or what personal development you make that can effect future opportunities.
For the former - New jobs are created/rebranded yearly. I currently work in user experience which as a description didn't exist 30 years ago but people were doing it, just weren't getting trained on it. Many computer languages and methods also didn't exist back then. The whole concept of internet influencer was not a thing in the last decade. So many technical developments effect future opportunities. The important thing is do what you like and if it is a new field the industry will follow.
In terms of personal development - communications is a big one. You can be the best person for the job and on the job but if you can't communicate that or work with other people (which involves communication) effectively, you will miss out on opportunities. I recommend trying Toastmasters or Youth Leadership Program ( a Toastmasters program) to work on communication skills. You can reach out to toastmasters.org and tell them your zip code and reach out to a a district to request this support. You can also watch TED talks and join a Speech and Debate club. You can't get better at communicating without practicing. Just like sports. You can watch a bit to learn but you need to practice to improve.
Hope that helps.