Well, whether a laptop lasts long or not depends on a little bit of luck (electronic devices will tend to break down regardless of how expensive it is) and of course, on how well you take care of your laptop
But I think it will be fine for you since you have had a good record with your old laptop
Still, unfortunately its not possible to get something "future proof" with  your budget.. in fact, everything is not future proof with technology haha

Perhaps you could consider this one?
14"
Dell Inspiron 14R, i5-3210M + Nvidia GT630M@RM1899[2.38kg], 4GB, 500GB(5400rpm) *and use the remaining money to extend warranty to 3 years on-site for peace of mind
If you have more budget to spare, try to go for this one as it has a better GPU (Photoshop etc will run smoother), and most importantly, a faster HDD (files and programs will load significantly faster)... and try to extend warranty to 3 years on-site too

As for future upgrades, you can consider upgrading to SSD after the HDD starts to get old and slow, probably around 3 years or so