What are my chances of getting citizenship?

My grandmother (Cuban) has recently applied for Spanish citizenship through Ley de Memoria Democrática, as her grandfather was Spanish. If she manages to get approved before LMD expires in October (which I am unsure of the chances of that happening), would I be able to apply through Anexo 1? Or would my mother have to apply through Anexo 3 first? If my mother applies, can I apply at the same time as her?

If I do miss the LMD time period, is there a way for me to at least get residency through my grandma if she’s a citizen? Any help would be appreciated.