>>23657433She just started on this area and with current pace we have AT LEAST 20 more hours of ER.
So, she's about 60% in. She has to finish this area(defeat flame giant), then she's transported to crumbling farum azula, whole new area full of fucking dragons where she has to defeat godskin duo and then Maliketh. After that she'll be transported back to the capital, now covered in ashes, where it's a straight road to the place where she fought Morgott, there she'll have to defeat Hora Loux the Chad, and right after that - Radagon, the first of the demigons, right after that - Elden Beast, manifestation of the Greater Will and a God, final boss.
If you know what to do, you can finish the game under 2 hours, that's what I did on NG+. If you don't know what to do and explore it can take up to 100+ hours.