Question about IE aspect and tense

In languages as greek and old Indic you have three aspects:

Perfective (usually called aoriste), imperfective and perfectum

You further have the tenses: present, preterite and future, but not
all tenses in all aspects. (present only have imperfect).

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In Anatolian you have only the tenses present and preterite. There
are no aspect in the flectional paradigm, but there are certain
derivational endings with aspectual meaning.

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Traditionally the aspect/tense system of Greek and Sanskrit have
been regarded as the original one, apart from the future tense.

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My queation is this: What tense/aspect system is by now regarded as
the original in the Proto-IE/Indo-Hettite? Has the traditional view
been modified on the background of the findings in Anatolian?

Or are there not any agreement at all about this any more?