i don't think so. he is just venturing on a different sound but songwriting and singing wise, still him. his lyrics in pupil is more personal (it's all about love!) compared to his storytelling-style lyrics in e-heads.
when people say that sala or monobloc sounds like e-heads, it doesn't, it sounds like ely's. ely contributed his skills as part of e-heads and he is now doing the same as part of pupil. ely will always be ely.
Andami haka haka na ganto tungkol ke ely. Moreover na some has conspiracy theories that he hates eheads. Mejo malabo un mga taong naniniwala na umiiwas nga si ely sa writing style nya noon, baket kamo? kasi tutok sila sa lyrics ng kanta. Kumbaga, karamihan ng eheads lyrics that made them famous are, kundi in layman's term na madaling intindihin, eh tungkol sa mababaw na takbo ng buhay ng tao (kung anu nararamdaman ng lasing, panliligaw na wala rin pinatunguhan, katorpehan, pagaaral mag drive, tungkol sa sembreak, etc.). Ely was still in eheads when he created Carbonstereoxide, if you analyze the lyrics, this encompases his persona today, which, maari masabe mo rin na iniiwasan na ni Ely yun writing style nya from Ultraelectromagneticpop to Natin 99.
Pero if you dig in deeper, I think its about the wit of how ely would express simple part of life, to the listeners (magandang example yun Spolarium, which was done on a first person view of getting drunk, fav ko to dahil dun sa delivery nun lyrics). This talent of Ely in fact, never faded, solid proof is the Wildlife album (I won't give examples, just buy the album and hear them yourselves).
Consider this, a child no longer plays the toys he used to play when he realizes to move on as a man. Ely still has the talent, kaya lang nahihirapan na siguro yun mga tao intindihin un songs nya, nde na sha in layman's term na madaling intindihin eh, tulad nun nasa eheads pa sha. These people yun mga taong kalaro ni Ely noon, who are disappointed because Ely won't play with them no more.