Can a sequence of "automatic" tasks be seen in an EEG? Say I train a task that consists of a sequence of smaller events a 1000 times such that it becomes an automatic/subconscious (something like muscle memory) movement. Then when I view the EEG signal during this automatic task (assuming this task consists of 3 small events) will I be able to see/decode instances of the second and third event once the first event is finished by the user?
It is basically sequential decoding of future automatic events.
The basic answer is that it depends on:


training protocol (duration, frequency)
modality (hearing, seeing, memorizing, attention, etc)
individual variance (observable changes varies between individuals - some may not respond to the training)


So it has to be determined individually for each task (not enough information provided in the original question). In other words, it is an empirical question, which means that the answer lies in the results of an experiment - ”we have to check”.