I think there is some room to increase the speed - mostly by improving perks that affect it. I really doubt we will ever see people zooming about the entire world map in a few seconds again though.
Solar this is the worst players can expect :>
And now some rage: even now, i keep reeding like "buy a car" "use a train", well i used a train. For example i am doing quest in a town, i go from vc to sf to do quest, if i go random to train station i wait for train on average 3 minutes (6 real minutes is maximum, 0 minimum), then i ride from vc to sf, it takes about 3 minutes (since you need three rides on your way from vc to sf), ok then i reached my destination, i did a quest, or i made a trade with needed alt npc i need to get back, but wait a minute, the train leaves almost as soon as it arrives, so i need to wait 6 real time minutes again, ok finally train arrives, and another 3 minutes journey from sf to vc. You call that a feature? travelling fastest way possible which takes 15 minutes on average if you live in vc and want to do business in sf (and in that 15 minutes you cannot do anything, so these 15 minutes are just 15 minutes of boredom).
What about cars, well fuck cars, if i want to level up for example, i get no encounters with car, ok i can leave car and then walk on foot on my destination where i want to level up, ok i die, i respawn in nowhere and happy journey Jack back to your car with this brand feature of travelling.
And dont say travelling speed is ok, because its not. But to objective i should say that i see some good things as well. Way back then when i played towns had 0 people, ncr had all, now i encounter much much more people in other towns.