[quote=@TheHangedMan]
[@Progenitus] Hardlight sims, Virtual Reality tech ala Sword Art Online, teleportation devices and practical laser weaponry. Of course, do note that a lot of this new tech is still expensive and very hard to afford regularly.
[/quote]

Let's see....
>hardlight sims
How much infrastructure they require, exactly? 'Cause forcefields that ALSO could imitate visual characteristics of something have more potential applications in warfare and civil engineering than I care to count.
>VR
How advanced, exactly? Can it do time-gradient or model Arms effects inside the simulation?
>teleportation
Holy~ Ok, do they have a maximum range? What about limitation on mass and energy requirements? This right there is a space-boom waiting to happen. Just set up orbital portal, or one on the Moon, and you're good to go for all the resources of Solar System.
>practical laser weaponry
Small-arms scale or vehicle-mounted only?

What about medicine, btw? Seeing as rather serious injuries are rather commonplace here(and, well, duels would be even more lethal with that kind of weaponry), there have to be some form of accelerated healing with options for restoring lost body parts, so that students could continue to attend and not be bed-ridden for months and crippled for life.