新派 topolect speakers are generally more affected by MSM. This often results in a lot of habits that are considered unorthodox by 老派 dialect speakers' standards.
I'm not overly familiar with Cantonese but I'm curious to know what 新派 habits are looked down upon by 老派 speakers?
A few possibilities:
- the introduction of 懒音, e.g.: the dropping of initial /ŋ-/
- replacement of topolectical vocabulary with that of MSM
- tonal changes defaulting to MSM instead of topolectical pronunciations
Aside from the /ŋ/ ---> /∅/ switch, my speculations are all quite broad and vague.