It is too costly for carriers to add anything to anything that's grandfathered. Neither Koodo, nor any competitor will do this.
If you have good self-control, you don't need shock-free data. This is a feature Koodo is offering to appeal to the millennials, among those many get hit with big cellphone bills due to overage charges. If you stay within your monthly plan's data allowance, you don't need this.
If your self-control is not always top-notch, and you often do get hit with overage usage, then it may be worth switching into a shock-free, in-market plan. Your super cheap grandfathered plan plus overage charges may still likely be more expensive than the in-market, shock-free data plan.
Best way to assess is to go to self-serve and check your past few bills, then figure out based on your data usage if you'd come out ahead switching to an in-market plan.
So what's the answer to the $1,000,000 question? If I change my plan, will I get the extra "shock-free" data, so that I don't run out of data 10 days into my cycle???
An answer ASAP would be appreciated from the "Koodo Gods".