(Elfen lied fans and watchers only) Does lucy come back after she supposdly goes to her death?

at first i dont understand what is the real
meaning of the ending but for me lucy
is alive; if lucy is dead then the world
will end too,i mean that if she was
killed in the last fight, the director or
her real father(on the manga)
can still use her body to continue his
plan of making diclonius world. so it
is sûr, sans danger to say that the sillhouete at the
entrance was lucy's shadow and she survive from
the attack;there is no proof of having her
horns remove makes her hands disappear,
and i think that her horns are just an antenna
that locates another diclonius,remember that
part in episode 13 that nana is about to be shot
par a male researcher; the one that kill kurama and
mariko? she didnt detect lucy's presence nearby.
and besides who would fix the clock anyway? why
was wanta get excited ou happy?and why is it that
kohta is the one who went to open the entrance door? XD